Japanese Onomatopoeia — Giongo & Gitaigo (ふわふわ, どきどき…) [JLPT N4-N3]
Content by NTJ Kuma · Nihongo to Japan editorial team · Updated July 27, 2026
The key to lively Japanese — sound and mimetic words like ふわふわ and どきどき, explained with examples.
「どきどき」「ふわふわ」 — using “sound-like” words to bring states to life
「試験の前はどきどきする」 (before a test my heart pounds), 「このパンはふわふわ」 (this bread is fluffy) — Japanese has tons of onomatopoeia (オノマトペ), rhythmic reduplicated words that vividly depict sounds, states, and feelings. They split into two: 擬音語 = imitating sounds (わんわん = woof); 擬態語 = depicting states/feelings (ふわふわ = fluffy, no actual sound). This guide teaches this set that instantly makes Japanese vivid.
Core: 擬音語 (sound) vs 擬態語 (state)
Onomatopoeia split into two:
- 擬音語 = imitating an actual sound: わんわん (a dog's bark), ざあざあ (pouring rain), ドンドン (banging).
- 擬態語 = depicting a state／feeling／mood (silent): ふわふわ (fluffy), きらきら (sparkling), どきどき (a pounding heart, nervous), にこにこ (smiling).
Traits: mostly reduplicated (AABB), often used as adverbs/verbs with 「する／と」.
How to Connect
| Form | Use | Example |
|---|---|---|
| onomatopoeia ＋ する | as a verb | どきどきする （heart pounds） |
| onomatopoeia ＋ と | as an adverb | きらきらと光る （sparkles brightly） |
| onomatopoeia ＋ の ＋ noun | modifying | ふわふわのパン |
See it in context
- 試験の前は、どきどきして眠れない。(Before a test I'm too nervous to sleep.) — state (heartbeat)
- このパンはふわふわしていて、おいしい。(This bread is fluffy and tasty.) — state (texture)
- 夜空の星がきらきら輝いている。(The stars sparkle in the night sky.) — state (light)
- 犬がわんわん吠えている。(The dog is barking woof-woof.) — sound
- 雨がざあざあ降っている。(The rain is pouring.) — sound (rain)
⚠️ Common mistakes to avoid
① 擬態語 isn't “a sound.” ふわふわ (soft), きらきら (bright), どきどき (nervous) — these have no actual sound; they use sound-like words to “depict a state or feeling.” Don't assume all onomatopoeia are sounds.
② Often ＋ 「する」 as a verb. どきどきする (be nervous), いらいらする (be irritated), わくわくする (be excited) — many mood/state 擬態語 become verbs with する.
③ Learned by feel, through exposure. Onomatopoeia have no logical rule (why is soft ふわふわ?) — build a “get it on hearing” sense through dramas, picture books, and daily life.
🔄 Compare with similar forms: 擬音語／擬態語／擬情語
| Type | Nuance | Example |
|---|---|---|
| 擬音語 | imitating an actual sound | わんわん・ざあざあ |
| 擬態語 | depicting a state, texture (silent) | ふわふわ・きらきら |
| 擬情語 | depicting a mood, feeling | どきどき・いらいら |
💡 An exam judgment tip
Onomatopoeia (擬音語・擬態語) are key to making Japanese “come alive” — they're everywhere in speech, manga, and ads (ふわふわ, どきどき, きらきら). Don't try to “memorize by rule,” because they run on feel: why soft is ふわふわ or a heartbeat is どきどき has no logic — you just hear and feel it. Practical tip: notice onomatopoeia in dramas and picture books and memorize a few frequent ones (どきどき = nervous, わくわく = excited, ふわふわ = fluffy, ぺこぺこ = hungry). Using them makes your Japanese instantly vivid and native.
❓ FAQ
Q: How do I tell 擬音語 from 擬態語?
擬音語 = imitating an actual “sound” (dog's bark わんわん, rain ざあざあ, banging ドンドン — there's a real sound); 擬態語 = depicting a “state, feeling, appearance” (fluffy ふわふわ, sparkling きらきら, nervous どきどき — no actual sound, using sound-like words to describe a state). Test: if the thing “really makes that sound” = 擬音語; if it describes “how it looks, feels, or how you feel inside” = 擬態語.
Q: There are so many onomatopoeia — how do I memorize them?
Don't memorize by rule — build feel through heavy exposure. They're not logical (why is soft ふわふわ and not もふもふ? — もふもふ exists too, with a slightly different feel), so absorb them through dramas, anime, picture books, and daily life, letting your ear remember. Start with a dozen very-frequent ones (どきどき・わくわく・ふわふわ・きらきら・ぺこぺこ・にこにこ), then expand once you have a feel.
🖊️ Practice Questions (5)
Q1. 「試験の前は___して、なかなか眠れなかった。」(Before the exam my heart was pounding, and I couldn't sleep)
(A) キラキラ (B) ドキドキ (C) ニコニコ (D) ふわふわ
Q2. 「このパンは___していて美味しい。」(This bread is soft and fluffy and delicious)
(A) ドキドキ (B) ぐずぐず (C) ふわふわ (D) ゴロゴロ
Q3. 「夜空の星が___輝いている。」(The stars in the night sky are twinkling)
(A) ザーザー (B) キラキラ (C) うとうと (D) ドキドキ
Q4. 「擬態語」の特徴は？
(A) 実際の音を模倣する語。
(D) 動詞の特殊変化形。
Q5. 「___しないで早くしなさい！」(Stop dawdling and hurry up!)
(A) ニコニコ (B) キラキラ (C) うとうと (D) ぐずぐず
Answer Explanations
1. (B) ドキドキ ── 「試験の前はドキドキして」(heart pounding before the exam), 「眠れなかった」(couldn't sleep) = the pounding of a nervous / excited heart → ドキドキ (functions as both onomatopoeia and mimetic word).
2. (C) ふわふわ ── 「このパンはふわふわ」(this bread is soft and fluffy), 「していて美味しい」= a soft, light texture / mouthfeel → ふわふわ (a mimetic word).
3. (B) キラキラ ── 「星がキラキラ」(the stars twinkling), 「輝いている」= a sparkling / glittering visual → キラキラ (a mimetic word).
4. (B) ── The feature of a mimetic word (擬態語): it does not imitate a sound but vividly expresses a state, sensation, or appearance (e.g. ふわふわ = soft and fluffy; ニコニコ = smiling) — a delicate mode of expression unique to Japanese.
5. (D) ぐずぐず ── 「ぐずぐずしないで」(stop dawdling), 「早くしなさい」(hurry up)! = dawdling / being slow → ぐずぐず (a mimetic word).