How to say "amplitude" in Japanese
Choosing the right word
- 振幅しんぷくnounThe standard term for the amplitude of vibration, oscillation, or a wave — the size of the swing from the centre. Use it in physics and engineering contexts.
- 振れ幅ふれはばnounLiterally the width of swinging or deflection; it is a less common way to express amplitude and is seldom the word you want for the technical physics sense, where 振幅 is preferred.
Use 振幅 for the technical amplitude of vibration or waves; 「振れ幅」 is a less common alternative describing the extent of swinging or fluctuation, and is rarely the first choice.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese equivalents
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