What is a thumb?

A thumb is the short thick digit that is attached to the hand. Humans have four fingers and one thumb on each hand. The plural is ‘thumbs’.

When pronouncing the word ‘thumb’, just remember…the ‘b’ is silent.

idioms with the body part ‘thumb’

Let’s look at some popular body idioms that contain the word ‘thumb’.


I’ve added the meaning and a picture example too.

idiomatic expressions with body parts - thumb
common body idioms and expressions (THUMB) list in English - all fingers and thumbs meaning
common body idioms and expressions (THUMB) list in English - rule of thumb
common body idioms and expressions (THUMB) list in English - thumbs down
common body idioms and expressions (THUMB) list in English - thumbs up meaning
common body idioms and expressions (THUMB) list in English - twiddle one’s thumbs
common body idioms and expressions (THUMB) list in English - under the thumb meaning