How to Say ‘Size’ in Japanese
大きさ
ooki sa
[oh-KEE sah]
💬 Usage Tip: 大きさ comes from 大きい "big", not from a word for "small". Japanese uses the "big" side when asking about size, just as English asks "how long" rather than "how short".
Phrase Breakdown
大き
ooki
[oh-KEE]
big (stem)
Stem of the adjective ookii (big); adding sa makes it a noun meaning size.
大きい箱を買いました。
I bought a big box.
さ
sa
[sah]
-ness; quality
Turns an adjective-like word into a noun showing a quality, like 'seriousness.'
まじめさは行動で見えます。
Seriousness can be seen through actions.
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