Onomatopoeia

The device, not the drawing

Onomatopoeia is a property of language. Crash, thud and hiss are onomatopoeic whether they appear in a comic, a novel or a conversation. What a letterer draws on the page — the shaped, coloured, exploding word crossing three panels — is the SFX layer, a production artefact with its own workflow. The two get used interchangeably and it costs nothing in casual talk, but they are different categories: onomatopoeia is what the word is, SFX is what the page contains.

Japanese has far more of these words, and they do more work

English onomatopoeia is a small, mostly closed set covering impacts and noises. Japanese splits the territory into at least two classes, and the second has no English counterpart:

• 擬音語 (giongo) — words for actual sounds. ドキドキ doki-doki, a pounding heart. ガシャン gashan, something breaking.
• 擬態語 (gitaigo) — words for states, textures and manners with no sound at all. キラキラ kira-kira, a glittering surface. じろじろ jiro-jiro, staring rudely. ふわふわ fuwa-fuwa, soft and floating.

The clearest case is しーん shiin: a written sound word for silence. A manga panel can letter silence directly onto the image, and the reader hears a room go quiet. English has no word for that and never developed the habit, so translators reach for silence… in italics, a caption, or nothing.

This inventory is large, productive and everyday — Japanese speakers coin new ones — which is why manga leans on it so hard. A single gitaigo across a panel can carry mood, texture and pace that English would need a caption to state.

What breaks in translation

Three things, reliably:

1. No equivalent word exists. Kira-kira is not “sparkle”; sparkle is a thing that happens, kira-kira is what being sparkly feels like. Most translations lose the register.
2. The word is part of the artwork. Japanese SFX is usually hand-drawn into the panel, so replacing it means erasing and repainting the art underneath — see SFX for how that is actually handled.
3. Length and direction fight the layout. Vertical katakana running down a tall panel does not become horizontal English of the same size without redesigning the space.

Writing them yourself

Specificity beats volume. Crunch and snap tell you different things about the same broken bone; BOOM tells you almost nothing. Pick the consonants for the material — plosives for hard impacts, sibilants for gas and liquid, nasals for resonance — and let the drawn form carry the size. A small, tightly drawn tik is more unsettling than a large BANG, because scale on the page reads as loudness and a quiet sound in a tense scene is a choice.