up103 blogOccasional notes on studying Korean and building up103.https://up103.comWhich Korean comprehensible-input YouTube channel matches your level? 22 channels, measuredhttps://up103.com/blog/korean-comprehensible-input-difficulty-rankedhttps://up103.com/blog/korean-comprehensible-input-difficulty-rankedWe measured grammar level, speech rate, and vocabulary variety across 302 videos from 22 Korean CI YouTube channels, with quick picks for what to watch by what you're after.Wed, 26 Aug 2026 00:00:00 GMT즐거운 추석 되세요 or 보내세요? The greeting Korea keeps correcting itself onhttps://up103.com/blog/korean-chuseok-greeting-doeseyo-vs-bonaeseyohttps://up103.com/blog/korean-chuseok-greeting-doeseyo-vs-bonaeseyoChuseok lands on 25 September 2026, and the same greeting mistake is about to fill everyone's texts again — the fix is one verb's worth of grammar that carries past the holiday.Tue, 25 Aug 2026 00:00:00 GMTWhat's the difference between 말랑말랑 and 물렁물렁?https://up103.com/blog/korean-texture-words-mallang-mullonghttps://up103.com/blog/korean-texture-words-mallang-mullongThe fidget-toy boom filled Korean shopping copy with texture words. 말랑말랑 and 물렁물렁 are the same texture at two different settings, and the setting is the vowel.Fri, 21 Aug 2026 00:00:00 GMTCan you say 수고하셨습니다 to your boss?https://up103.com/blog/korean-sugohada-registerhttps://up103.com/blog/korean-sugohada-registerThe end-of-summer challenge put 수고했어 in every caption. The same verb is the one Korea's own etiquette standard tells you not to aim upward.Wed, 19 Aug 2026 00:00:00 GMTThe 게 in 누가 돌아왔게 is not the 게 you studiedhttps://up103.com/blog/korean-sentence-ending-gehttps://up103.com/blog/korean-sentence-ending-geA meme put 누가 돌아왔게 in every Korean feed this summer. The 게 on the end is a sentence ending, not the 게 of 예쁘게 — and Korean has five of them.Mon, 17 Aug 2026 00:00:00 GMTWhat 꾸 means in 다꾸, 폰꾸, and 백꾸https://up103.com/blog/korean-slang-kku-and-temhttps://up103.com/blog/korean-slang-kku-and-temThe keyring boom put 백꾸 in every shopping caption. The 꾸 behind it is a word-building rule you can run on words nobody has coined yet.Fri, 14 Aug 2026 00:00:00 GMTWhat TOPIK listening actually tests: 24 past papers, measuredhttps://up103.com/blog/topik-listening-grammar-coveragehttps://up103.com/blog/topik-listening-grammar-coverageWe tagged every spoken line in 24 released TOPIK listening papers. TOPIK II barely adds new grammar — it adds two and a half times more Korean per paper.Wed, 12 Aug 2026 00:00:00 GMTKorean weather alerts: 주의보, 경보, and the new 폭염중대경보https://up103.com/blog/korean-weather-alert-vocabularyhttps://up103.com/blog/korean-weather-alert-vocabularyKorea added a top-tier heat alert this summer. The words around it are a small, rigid system — learn it once and you can read every hazard alert for good.Mon, 10 Aug 2026 00:00:00 GMTHow I improved my Korean listening skillshttps://up103.com/blog/how-i-study-koreanhttps://up103.com/blog/how-i-study-koreanListening was the skill that stayed behind — until I made my own study notes the source of my listening material.Fri, 07 Aug 2026 00:00:00 GMT