Owner review 13, lane C1: stores, existing brands and meaning for Madang, Duri, Dodam, Oreum (2026-10-13)

Status: Draft · Date: 2026-10-13 · Lane C1 of owner review 13. Inputs: the owner's question, the review-12 rulings and Korean-words research, the review-5 method. Audience: the owner. Nothing outside this file was changed. This is a web-and-store scan, not a legal trademark search (that is another lane).

Owner, review 13 (verbatim). "Oreum is also fine, I think. Can you research the 4 words to see if we can actually use them?"

0. Evidence tags and limits

Tag	Meaning
API	iTunes Search API, fetched with curl on 2026-10-13, 3 s apart, limit=50.
GP	Google Play search page fetched with curl, parsed for app links.
WS	One web search on 2026-10-13 (search-engine summary; secondhand).
NW	나무위키 page fetched with curl on 2026-10-13.
WP	Wikipedia or Wiktionary API, fetched on 2026-10-13.
UD	Urban Dictionary public API, fetched on 2026-10-13.
K	My own knowledge, not fetched. Unchecked.

Not checked, and why.

• Google Play, complete listing. The search page returns only a few server-rendered results (0 to 1 apps per query), so absence there proves nothing. Manual check: open https://play.google.com/store/search?q=<word>&c=apps in a browser, for each word and respelling, with gl=KR, gl=US, gl=JP.
• 우리말샘. The open-dictionary URL returned 404 to curl. Manual: https://opendict.korean.go.kr.
• Naver. Not fetched (search pages are script-rendered). Manual: search each word plus 뜻 and 은어.
• Foreign-language meanings (Spanish, Portuguese, Japanese, Chinese pinyin, Malay, Indonesian, Hindi, Turkish, Arabic): only partly fetched. Anything tagged K needs a native-speaker check.
• Trademark registers, domains, social handles: other lanes.

Evidence versus taste. Store counts, app names, sellers and ratings are evidence. The verdict labels are my judgement from it. The owner's taste decides the rest.

1. App Store (iTunes Search API)

Queries: https://itunes.apple.com/search?term=<term>&entity=software&country=<us|kr|jp>&limit=50 for terms madang, duri, doori, dodam, oreum, orum, oroom, 마당, 두리, 도담, 오름 (33 queries, all HTTP 200). "Starts with" means the app name begins with the word. Ratings are the count returned by the API for that storefront.

1.1 Madang / 마당

• Latin, name equals or starts with "Madang": none in US, KR or JP.
• Name contains it: Hangul Madang (Games, 0 ratings, Taeho Kim; sibling 한글마당, 3 ratings in KR), AIMADANG (Business, 0 ratings, nam soo kim).
• Publisher "AppMadang" (a Korean indie studio): 14 apps in US, e.g. MiraCamera (6,126 ratings KR), 야메라/Yamera (3,122 KR), GIF Toaster (1,591 KR), BlackVideo (6,113 JP). It is a publisher name, not an app, but it owns the "Madang" search results.
• Hangul 마당 as the whole name: one, 마당 - 친구들이 사는 곳 (Lifestyle, 0 ratings, Taehyeon Sin, KR only).
• Hangul 마당 as a prefix or suffix, KR: 경매마당 (Lifestyle, 40 ratings, Weseed), 기업마당 (Business, 11, SMBA government), 서울시 소비재 정보마당 (Reference, 10, Seoul city), 일마당 (2), 살림마당 (4, WEEDSOFT), 행정마당, 과천마당 (5, Gwacheon city), e해마당 (3), 마당 꾸미기 AI – LandUp (garden design, 0), AI 정원 테라스 마당 디자인, 한인 마당.
• Reading: the word is common in Korean service names but no big app owns it. The one exact-name app has 0 ratings.

1.2 Duri / Doori / 두리

• Duri, US (6 names starting with it): Duri - Rideshare + Carpool App (Travel, 1 rating, Lakshmi Nanduri), DURI (Lifestyle, 0, PARTNERS LN COMPANY LIMITED), Duri Catering (Food and Drink, 0, PEBLLA), duri - 우리 둘만의 아카이브·할일 관리 공간 (Lifestyle, 0, Jae Hyung Lee), Duri 가계부 (Finance, 0), Duri - Your Korea AI Planner (Travel, 0).
• Duri, KR: the same, with ratings of 1 to 2 (DURI 2, Duri 가계부 2). Note the two Korean "for two people" apps (duri - 우리 둘만의…, Duri 가계부 - 둘이 쓰는 가계부) use exactly the 둘이 meaning we would use.
• Doori: Doori (Health and Fitness, 0 ratings, Sensorize Solutions Private Limited, US/KR/JP), doori - 집안일 분담 투두 (Productivity, 5 ratings, Dahye Jang, KR).
• Hangul 두리, KR (7 starting with it): 두리 - 커플 다이어리 (Lifestyle, 1, D.Chain Connect), 두리한지공방 (1), 두리대리 (1), 두리소 Duriso (4), 두리두밥 (Social Networking, 3), 두리: 투어메이트 (Travel, 0), 두리고리 - 함께 남기는 기록 (0).
• Reading: crowded. Five or six small apps already sit under the same Latin and Hangul words, several with the same "two of us" meaning, though none has more than 5 ratings.

1.3 Dodam / 도담

• Latin "Dodam" as an app name: none in US, KR or JP.
• Publisher Dodam&Company: 수업 기록노트 / Lesson Manager (Productivity, 62 ratings KR, 1 US).
• Hangul 도담, KR (5 starting with it): 도담도담 - 스마트 학교 관리 서비스 (Education, 21 ratings, byoungtak jeun), 도담 - AI 육아 파트너 (Lifestyle, 0), 도담이: 픽셀 친구 키우기 (Games, 0), 도담 - 작은 습관 기록 (Health and Fitness, 0), 도담영어 (Education, 0).
• Reading: the Latin name is open. The Hangul name is used by parenting and children's apps, which matches its meaning.

1.4 Oreum / Orum / Oroom / 오름

• Oreum, US/KR/JP: Oreum Network (Utilities, 1 rating US, OREUM NETWORK LTD, app id 6778807007). Per a web search it is a tap-to-earn crypto mining app released July 2026 (WS, thin sources; see §2).
• Publishers: TEAM OREUM, Inc. (Korean: 혈당일기 blood-sugar log 21 ratings KR, 배죽계산기, 멘쯔유 환산기; 3 to 4 small utility apps) and OREUM INC (Chompy Meal Buddy, Lifestyle, 2 ratings US).
• Orum (respelling), US: Orum: Psychic & Tarot Chat (Lifestyle, 7), ORUM15 (Business, Sunjin Co.), Orum Training (Health and Fitness, 1, Maxim Sanders), Orum Gold (Shopping, PT ORUM LOGAM NUSANTARA). The sales-dialer company Orum (§2) has no iOS app starting with the name in these results.
• Oroom: no app starts with it; 18 loosely matched results in US, 0 in KR and JP.
• Hangul 오름, KR (4 starting with it): 오름 - 나의 등산 기록 (Travel, 14 ratings, Yeonghun Kim), 오름 - 물품 경매 거래 (Shopping, 0), 오름달 - AI 투자 멘탈 코치 (4), 오름 기록 - Summit (Health and Fitness, 0, Flowstate Industries).
• Reading: the exact Latin name Oreum already belongs to a live app (crypto, utilities category) in the same three stores. Store names do not have to be unique on iOS (the store title would be Oreum: 테니스 클럽 운영), but the search results would be shared.

2. Google Play

• Fetched https://play.google.com/store/search?q=<term>&c=apps&hl=<ko|en>&gl=<KR|US> for madang, duri, dodam, oreum, doori, orum and the four Hangul words (GP). Status 200 each, but the page lists 0 to 1 apps, so it is not a full search.
• Seen: Madang: 경매마당 - 부동산 경매, 공매 정보 (com.madangs.mobileapp). Oreum: Oreum Network (com.mine.oreum). Doori: Doori (com.doori.mobileapp). Nothing for Duri, Dodam or the Hangul words.
• Web search with site:play.google.com (WS): no Madang app; a developer page named DODAM (one app, "One Base a Day"); for Duri the match was Durioo+ (kids' halal streaming app whose mascot is "Duri", a hedgehog; sources are secondary).
• Verdict on the evidence: the stores agree with Apple. Same-name collisions exist for Oreum (a second live app) and Doori. Madang and Dodam show none, with the caveat that the Play check is incomplete. Manual: search each word on play.google.com in a browser before committing.

3. Brands and companies (web search, WS unless noted)

3.1 Madang

• Restaurants abroad: Madang Restaurant in Berlin, Englewood Cliffs NJ, Sydney (Pitt St), Melbourne (Myeong-ga Madang), Abu Dhabi (Al Ghazal Golf Club). All food service; no software.
• Culture and retail: KT&G Sangsang Madang (a national arts-space network, Hongdae, Busan, etc., about 3 million visitors a year), Madang Mall in Los Angeles (opened 2010), Madang Festival in Kelowna, the Korean Cultural Center Tokyo's "madang" space.
• Geography: Madang is a city of about 30,000 and a province in Papua New Guinea, with its own airport (NW 마당(동음이의어); WP Wiktionary "A province of Papua New Guinea"; also a Lun Bawang given name). Searching "Madang" alone will mostly return Papua New Guinea.
• Service names: 토론마당, 놀이마당 style compounds are everywhere in Korean public services (see §1.1); 상상마당 is the strongest.
• Sports and software: no Madang tennis, sports, club or software brand found in 3 searches (English and Korean). No hit is a competitor.

3.2 Duri

• Companies: DURI, a Busan baby-care company (potty seats, bath, furniture), founded 2007 and operated by Present Co., Ltd. (Preqin profile, secondary).
• Apps and services: 두리요, a Korean app for finding massage parlours, bars and karaoke with two-person group-buy discounts (App Store, ca storefront); Durioo+ (kids' halal streaming, mascot Duri); the small apps in §1.2.
• People: 차두리 (Cha Du-ri), a very well-known Korean footballer and coach, and 두리 the trot singer (GBB, 미스트롯) (NW 두리, 두리(동음이의어)). In Korea, 두리 in sports news will mean 차두리. For a sports app that is a name-association conflict, though a friendly one.
• Places: Duri, a town in Riau, Sumatra, Indonesia, and Duri, a suburb of Tamworth, NSW (WP).
• Sports: no Duri tennis or padel app found; the only racket-sport hits were unrelated (Playtomic, JPadel and others).

3.3 Dodam

• Companies: Dodam Ventures (도담벤처스), a small VC in Seongnam, founded 2021 or 2022; 특허법인도담 (patent firm, Seongnam); 도담갈비 (restaurant, Muan); DODAM 1988 (Insadong restaurant); Dododam (a business-book publisher, Seoul, different word) (WS, thevc.kr).
• People and places: 도담, a singer-songwriter on Label1979, fandom 도다미네 (NW); 도담역, a railway station; 도담삼봉, a famed rock formation in Danyang (K).
• Sports, tennis, clubs: nothing found. The tennis-related results in the same search (스매시/smaxh, 테친소) are unrelated competitors, not Dodam.

3.4 Oreum

• Brands: Hotel Oreum (Jinju boutique hotel, opened January 2026), Oreum Cafe (a Jeju-themed kids' cafe), Tansan Oreum (Jeju sparkling water), Jeju Oreum Jeotgal, an Airbnb "Oreum Story", Theoreum K Co. Ltd (Jeju hospitality). No Oreum sports brand.
• Software and apps: Oreum Network (crypto tap-to-earn, ORM token, mining app released July 2026; no corporate record found, WS thin), TEAM OREUM Inc., OREUM INC (§1.4).
• Orum, the "sales dialer": confirmed. Orum is a US AI parallel-dialer company for sales teams, co-founded by Jason Dorfman and Karthik Viswanathan, over $50M raised including a $22M Series B in November 2022, about 160 employees (WS; Sacra, Craft Ventures). It is a software company with a one-letter-different, identical-sounding name. If we respell Oreum as Orum, we land on it.
• Latin "oleum" (oil): not a collision for Oreum; it is a different word (K).
• Oreo: one letter from OREO plus M. Oreo is a food mark (K); the risk is a letter-similarity argument, low for software, but the trademark lane should confirm.

4. Meaning and slang

4.1 Korean (NW fetched; Naver and 우리말샘 not checked)

• 마당: the flat ground around a house; also a unit of a pansori piece ("판소리 열두 마당") and a figurative "the place or situation where something happens" (NW 마당). 마당발 (someone with a wide network) and 마당쇠 (a stereotyped male servant) are compounds, not the bare word (K). No sexual or insulting slang found.
• 두리: the dictionary entry points to 둘레 (NW 두리(동음이의어): "둘레의 이음동의어"). Given-name and star associations: 차두리, the singer 두리, fictional characters (NW). No negative slang found (K for the rest).
• 도담: from 도담도담, a child growing up healthily; the NW page has the singer, a station and a martial-arts novel character. No negative slang found. It is strongly a baby and parenting word.
• 오름: a Jeju volcanic cone, originally a pure-Korean word for a small peak; in standard Korean also the noun of 오르다 "to rise" and finance news uses 오름세 for an uptrend (NW 오름; K for finance use). Positive.

4.2 Abroad

Word and respellings	English slang (UD, top entries)	Other languages	How a foreign speaker says it
Madang	Nothing exact (loose matches only)	A province and city in Papua New Guinea (WP); a Lun Bawang given name (WP). No known obscene sense in Malay, Indonesian, Hindi, Turkish or Arabic (K, unchecked).	"MAH-dahng", stable.
Duri	Top entries are a personal name and a sexual-slang entry (UD, 0 votes)	Malay and Indonesian: duri = thorn (K). Also a town and an ethnic group in Indonesia (WP). Hindi/Urdu doori (दूरी) = distance (K).	"DOO-ree".
Doori	UD: a Black-slang word for sex, a woman's name, a Japanese "just as planned" gloss (UD, 0 votes)	Japanese どうり/通り readings (K); Hindi/Urdu distance (K); Doori is also the name of a Burkina Faso city spelling variant (WP Wiktionary).	"DOO-ree".
Dodam	One entry unrelated to a Korean word ("Lubog"), one dopamine-detox usage (UD). Effectively clean.	No known sense in the other languages (K, unchecked).	"DOH-dahm" (a stress on the first syllable). Looks like "dodo" plus "dam".
Oreum	Nothing exact (loose matches such as "Oreo" shakes).	Not a word in Spanish, Portuguese, Malay or Turkish (K). Not Latin "oleum".	Uncertain. English readers will say "OR-ee-um" (like "Oreo" plus "um") or "oh-REE-um". Korean ㅗ-ㄹ-ㅡ-ㅁ is closer to "oh-reum" with a short unrounded vowel (the ㅡ), which has no English letter. This is the weakest word on pronunciation.
Orum	An entry for an intense orgasm (UD, 0 votes, only one other entry)	Ørum/Orum is a Danish place name (WP).	"OR-um" or "OH-rum".
Oroom	A drop-splash measure and a fantasy-character gloss (UD, loose)	None known (K).	"oh-ROOM" (like "a room"). Reads as two words.

Pronunciation order of ease: Madang and Duri are easy, Dodam is easy but stress-ambiguous, Oreum is the hard one. "Oroom" fixes the vowel for English readers but reads as "o room" and loses the Hangul trace.

5. Verdict per word

Labels: Clear, Usable with conditions, Risky, Blocked.

Word	App stores	Brand clashes	Meaning	Overall	Safest spelling
Madang / 마당	Clear in Latin (no app named Madang; the publisher "AppMadang" is a search-noise risk). Hangul: Usable (one 0-rating exact-name app, many 〇〇마당).	Usable with conditions: many restaurants and the 상상마당 arts network, none in sports or software.	Clear in Korean (yard, gathering). Papua New Guinea dominates English search.	Usable with conditions. Needs a descriptor (Madang: 테니스 클럽 운영) to beat the PNG results.	Madang
Duri / Doori / 두리	Risky: 6 Latin apps named Duri, 2 Doori, 7 Hangul, several with the same "two of us" meaning.	Risky: DURI baby brand, 두리요 (an adult-services finder, a bad neighbour), Durioo+.	Usable: the 둘이 meaning is nice in Korea; Malay "thorn" and slang entries abroad; 두리 means 차두리 to a Korean sports reader.	Risky. The meaning fits best of the four, and the namespace is the most crowded.	Duri; Doori adds a slang entry and another app
Dodam / 도담	Clear in Latin (no app, only the Dodam&Company publisher). Hangul: Usable with conditions (5 parenting and child apps; 도담도담 school app has 21 ratings).	Usable: a small VC, a patent firm, restaurants, a singer. No sports.	Clear, but the meaning is a child growing: a mismatch for adult amateur tennis.	Usable with conditions. The cleanest namespace, the weakest meaning fit.	Dodam
Oreum / 오름	Risky for the exact Latin name: a live Oreum Network crypto app in the same stores, plus two Oreum-named publishers. Hangul: Usable (4 apps, one with 14 ratings).	Usable with conditions: Jeju hotel, cafe, water; no sports. The crypto tap-to-earn adjacency is a reputation worry (thin sources).	Clear and positive in Korean (climbing, rising); the pronunciation abroad is uncertain.	Usable with conditions. Best meaning for a "two more, a little better" app, but share a name with a live app and ask a pronunciation question.	Oreum
Orum	Risky: 4 apps (psychic chat, training, gold, business).	Blocked in software: Orum, a funded US sales-software company ($50M+).	One slang entry in UD (sexual).	Blocked as a respelling.	Do not use
Oroom	Clear (no app).	Clear in this scan.	Reads as "o room"; no slang found.	Usable with conditions. Safe namespace, weak pronunciation link to 오름.	Only if the owner wants a respelling

6. Blockers and what to do next

• Blocker: Orum (the sales-dialer company) blocks the respelling Orum. Not a blocker for Oreum, but it means any Oreum-to-Orum drift must be avoided in copy and handles.
• Biggest open risk: the existing Oreum Network app (and the handle oreum on stores and social). Check the Play listing and the trademark lane's result before committing.
• Duri: do not pick it unless the owner accepts a crowded namespace and the 차두리 association.
• Madang and Dodam: cleanest on the evidence. Madang is clear in stores; Dodam is clear in Latin but carries a baby meaning.
• Manual checks the owner can run in minutes:
  • Play: https://play.google.com/store/search?q=oreum&c=apps (and madang, dodam, duri).
  • Apple: https://itunes.apple.com/search?term=oreum&entity=software&country=us&limit=50 (and kr, jp).
  • 우리말샘: https://opendict.korean.go.kr; Naver: search <word> 뜻 and <word> 은어.
  • Native-speaker check for the "Foreign-language meanings" rows tagged K.

Implementation

No code changes. If the owner picks a word, the follow-ups are:

• [ ] Trademark, domain and handle lanes for the chosen word (other lanes).
• [ ] Re-run the iTunes queries in §1 on the day of registration (store listings change daily; the Oreum Network app is only about three months old).
• [ ] Update the naming section of the review rulings doc with the pick, and the store title Name: 테니스 클럽 운영 in the store-listing doc.