How to say "thickness" in Japanese

Choosing the right word
  • 厚みあつみCommon
    nounThickness as a felt quality rather than a bare figure: the substance or fullness that thickness lends a thing. Typical in description, when how thick something feels matters more than its exact measurement.
  • 厚さあつさCommon
    nounThe straightforward word for thickness as a measurable dimension or property of an object. Use it when stating or asking how thick something is, as in giving a figure or comparing thicknesses.

Both mean thickness: use 「厚さ」 for thickness as an objective, measurable dimension, and 「厚み」 when thinking of thickness as a felt quality — the substance or fullness that thickness gives a thing.

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

Japanese equivalents
  • 厚みあつみthickness
  • 厚さあつさthickness
  • とろみthickness (of a sauce, soup, etc.)
  • 厚あつthickness
  • 厚薄こうはくthickness
  • 分ぶthickness
  • 束つかthickness (of a book minus the cover, a sheaf of paper, etc.)
  • 肉にくthickness

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