How to say "loudly" in Japanese

• ガンガンCommon
  adverb (with と)The general choice for loud, booming or clanging noise; as a mimetic adverb it describes something ringing out loudly, such as music, bells, or hammering sounds filling the air.
• わあわあ
  adverb (with と)Covers loudly specifically for wailing or a group making an uproar; people crying, shouting, or clamoring all at once. It is less common and suits noisy human commotion, not objects.
• ガラッと
  adverbReally describes something flinging or sliding open with a clatter; the 'loudly' sense is secondary and tied to that rattling sound. Seldom the word you want for loudness in general.
• ガーガー
  adverb (with と)Used for loud snoring, or for complaining and arguing noisily; it suggests gruff, relentless vocal noise rather than general volume. Also fits honking or squawking sounds.

All four are onomatopoeic; pick 「ガンガン」 for loud booming noise, 「わあわあ」 for wailing or clamor, 「ガラッと」 mainly for clattering openings, and 「ガーガー」 for snoring or loud complaining.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• がんがんclanging
• わあわあloudly (wailing, making a noise, etc.)
• ガラッと(opening) with a clatter
• 呵呵かか(laughing) loudly
• 哄然こうぜん(laugh) broadly
• わいわいloudly (crying)
• がーがーloudly (snore, complain, argue, etc.)
• わんわんclamouring