Supersonic — fromis_9: meaning, key lines and pronunciation
What does “Supersonic” by fromis_9 mean?
In “Supersonic,” fromis_9 offer to speed to the rescue of someone worn down by summer heat and a tired city. They cast themselves as a siren, ready to arrive whenever they're called, day or night, to shake that person out of a sticky, irritable haze.
What the song is about
Beneath the fast, sweaty energy is quiet care: they sense what's wrong without being told and want to loosen the knots inside that person's heart.
Key lines
4 lines from the song in Korean, with how they sound and what they mean. The full line-by-line breakdown lives in the app.
You 이른 아침 해는 너무Listen from this lineRomanization (as sung): You i·reu na·chim hae·neun neo·mu
Meaning: You, the early morning sun is just too...
Words in this line- 이른i·reuearly
- 아침na·chimmorning
- 해는hae·neunthe sun
- 너무neo·mutoo much
Word for word: You early morning sun-topic too
Why it doesn't translate word for word: Korean has no articles or prepositions, so 이른 ("early") and 아침 ("morning") just sit side by side, and the particle 는 on 해는 ("sun") only marks it as the topic. 너무 alone means "too (much)", and the sentence stops on it, leaving the rest to the next line. That is why the literal version sounds clipped, while natural English reads as a setup like "the morning sun is way too much".
적셔도 계속 목이 타지Listen from this lineRomanization (as sung): jeok·ssyeo·do gye·song mo·gi ta·ji
Meaning: Even when I wet it, my throat keeps burning dry.
Words in this line- 적셔도jeok·ssyeo·doeven if wetting
- 계속gye·songcontinuously
- 목이mo·githroat
- 타지ta·jiburns, is dry
Word for word: Even wetting, continuously throat burns
Why it doesn't translate word for word: 적셔도 is "to wet" plus the ending -도 "even if", and 계속 means "continuously". 목이 타다 literally says "the throat burns", but it is a fixed phrase for being badly thirsty. The ending -지 adds a "see, that's how it is" tone that no single word carries.
손짓 한 번에 다 숨죽여Listen to the first verse — freeRomanization (as sung): son·ji tan beo·ne da sum·ju·gyeo
Meaning: With one wave of a hand, everyone holds their breath
Words in this line- 손짓son·jihand gesture
- 한tanone
- 번에beo·nein one time
- 다daall
- 숨죽여sum·ju·gyeohushed
Word for word: Hand-gesture one time all kill-the-breath.
Why it doesn't translate word for word: 손짓 joins 손 'hand' and 짓 'motion', so a hand gesture. 한 번에 literally 'in one time' means 'in an instant'. 숨죽이다 is 'to kill the breath', which in practice means to hold your breath in hushed awe.
말하지 않아도 알 수 있어Listen to the first verse — freeRomanization (as sung): ma·ra·ji a·na·do al ssu i·sseo
Meaning: I can tell even without words
Words in this line- 말하지ma·ra·jito say
- 않아도a·na·doeven if not
- 알alknow
- 수ssuway, ability
- 있어i·sseothere is
Word for word: Even if not saying, know way exists.
Why it doesn't translate word for word: 말하지 않아도 is 'even if one doesn't say'. 알 수 있다 literally 'know — way — exists' is the standard pattern for 'is able to tell'. Together they express quiet mutual understanding where words aren't needed.
Lyrics © their rights holders. “Supersonic” — fromis_9. Quoted for commentary and learning.
Song facts
- Lines
- 58
- Key lines explained
- 4
- Words explained
- 18
- Length
- 3:02
Mini-lesson: fill in the missing word
A line from the song with one word missing: listen, then pick the right word. Bomi checks your answer and saves the new words to your notebook.
Try the lessonAsk Bomi about this song
Why this word and not another? What does that slang mean? Ask in your own words and your idol answers about this exact line.
Ask BomiSong vocabulary
Words from the song in Korean alphabetical order, with pronunciation and meaning.
| Word | Sounds like | Meaning |
|---|---|---|
| 구할 | gu·hal | to save |
| 그땐 | geu·ttaen | then |
| 길었던 | gi·reot·tteon | that was long |
| 깨워낼 | kkae·wo·nael | who will wake |
| 끈적인 | kkeun·jeo·gin | sticky |
| 너만 | neo·man | only you |
| 다가오면 | da·ga·o·myeon | when it approaches |
| 단숨에 | dan·su·me | in one breath |
| 달라진 | dal·la·jin | changed |
| 도시 | do·si | city |
| 뛰어들어 | ttwi·eo·deu·reo | jump in |
| 뜨거운 | tteu·geo·un | hot |
| 뜨겁고 | tteu·geop·kko | hot, and |
| 맘속 | mam·sok | inside the heart |
| 방법을 | bang·beo·beul | way (object) |
| 불러봐 | bul·leo·bwa | try calling |
| 언제든 | eon·je·deun | anytime |
| 지친 | ji·chin | worn-out |
Keep these 18 words
Make a free account and the words from “Supersonic” go to your study notebook with spaced review, so they come back right before you forget them.
Create a free accountWith Google, Apple or email · 10 seconds
Questions about “Supersonic”
What is “Supersonic” by fromis_9 about?
In “Supersonic,” fromis_9 offer to speed to the rescue of someone worn down by summer heat and a tired city. They cast themselves as a siren, ready to arrive whenever they're called, day or night, to shake that person out of a sticky, irritable haze. Beneath the fast, sweaty energy is quiet care: they sense what's wrong without being told and want to loosen the knots inside that person's heart.
What does “You 이른 아침 해는 너무” mean in “Supersonic”?
In “Supersonic” by fromis_9, “You 이른 아침 해는 너무” means: You, the early morning sun is just too... Korean has no articles or prepositions, so 이른 ("early") and 아침 ("morning") just sit side by side, and the particle 는 on 해는 ("sun") only marks it as the topic. 너무 alone means "too (much)", and the sentence stops on it, leaving the rest to the next line.
What does “적셔도 계속 목이 타지” mean in “Supersonic”?
In “Supersonic” by fromis_9, “적셔도 계속 목이 타지” means: Even when I wet it, my throat keeps burning dry. 적셔도 is "to wet" plus the ending -도 "even if", and 계속 means "continuously". 목이 타다 literally says "the throat burns", but it is a fixed phrase for being badly thirsty. The ending -지 adds a "see, that's how it is" tone that no single word carries.
How do you pronounce “손짓 한 번에 다 숨죽여”?
“손짓 한 번에 다 숨죽여” from “Supersonic” by fromis_9 is romanized as “sonji tan beone da sumjugyeo”: that is how it is actually sung, sound changes included, not the textbook spelling.
Where can I see every line of “Supersonic” explained?
This page explains 4 key lines. In the theIDOL app Bomi goes through all 58 lines word by word, in sync with the song; the first verse is free and needs no sign-up.
Official music video
The video loads from YouTube only when you press play. YouTube ↗
How we make these breakdowns
theIDOL builds every breakdown with AI assistance and automated checks, and publishes a page only after it passes them. An AI model writes the meaning of each line and the word-by-word glosses from the song's timed lyrics. The pronunciation comes from our own rule-based Korean transcriber, which spells how the words sound when sung, sound changes included, not a letter-by-letter romanization. Pages that fail the audio-sync or translation checks are not published, and we quote only a few key lines. If you spot a mistake, write to support@theidol.ai and we will fix it.
Credits and sources
- Artist
- fromis_9
- Official video
- HYBE LABELS · YouTube
Lyrics and music belong to their rights holders. This page quotes no more than four lines for commentary; the translations, pronunciation and explanations are written by theIDOL.