厚(あつ)さ

あつさ
noun
thickness
See also: 暑(あつ)さ (heat (weather))
1. thickness
The distance between two opposite surfaces of something.
この本(ほん)の厚(あつ)さは3センチだ。
The thickness of this book is 3 centimeters.
壁(かべ)の厚(あつ)さを測(はか)る。
To measure the thickness of the wall.
厚(あつ)さ5ミリの板(いた)
A board 5 millimeters thick

厚(あつ)さ is a measurement noun derived from the adjective 厚(あつ)い (thick) + the nominalizing suffix さ. It expresses thickness as a measurable quantity.

COMMON PATTERNS:

  • 厚(あつ)さ〜センチ: ~ centimeters thick
  • 厚(あつ)さを測(はか)る: to measure thickness
  • 厚(あつ)さがある: to have thickness, to be thick

HOMOPHONE:
Do not confuse with 暑(あつ)さ (heat/hotness from weather), which has the same reading but different kanji and meaning.

RELATED MEASUREMENT NOUNS:

  • 長(なが)さ: length (from 長(なが)い)
  • 高(たか)さ: height (from 高(たか)い)
  • 深(ふか)さ: depth (from 深(ふか)い)
  • 広(ひろ)さ: area/spaciousness (from 広(ひろ)い)
  • 重(おも)さ: weight (from 重(おも)い)

All follow the same い-adjective stem + さ pattern to create nouns expressing degree or measurement.

Related Words

Related: 厚(あつ)い (thick (adjective))
Related: 重(おも)さ (weight)
Related: 長(なが)さ (length)
general
Added 2026.1.16 14:20 · Revised 2026.4.14 12:00
05000/05329_atsusa