cm

cm — noun

1. a short written form of the metric unit 'centimetre', used to express length — e

1.名詞A2
釋義

a short written form of the metric unit 'centimetre', used to express length — equal to one hundredth of a metre

例句

The shelf Priya bought for her kitchen was exactly 90 cm wide.

number + cm for measurement

At the clinic Diego measured 110 cm, which is tall for his age.

同義詞
  • centimetre

    the full written or spoken form; cm is used in written measurements, while 'centimetre' appears in narrative text and speech

文法句型

number + cm

cm of + noun

用法筆記

Written without a capital letter and without a period. The form does not change for plural: write '5 cm', not '5 cms'. Typically follows a number with no space or a thin space. Very common in recipes, furniture dimensions, height measurements, maps, and rainfall/snowfall data.

常見錯誤

❌The desk is 120 cms long.
✅The desk is 120 cm long.
💡cm stays the same whether the number is singular or plural.
❌It was 5 CM of rain.
✅It was 5 cm of rain.
💡unit abbreviations are kept in lowercase, even after a full stop.
❌Measure 15 c.m. of fabric.
✅Measure 15 cm of fabric.
💡no periods between the letters.