thumb
The shortest and thickest digit of the hand that for humans has the most mobility and can be made to oppose (moved to touch) all of the other fingers.
Other meanings
The part of a slider that may be moved linearly along the slider.
“a scroll-bar thumb”
A top hatch plate for covering an bucket, used to keep material in the digger bucket after scooping it up, and not letting it spill out.
Related words
- all fingers and thumbs
- all thumbs
- ball of the thumb
- bethumb
- bite one's thumb
- thumb-sized
- with a thumb up one's bum
- black thumb
- brown thumb
- butcher's thumb
- Chinese thumb cuff
- climb up one's thumb
Word history
From Old English "þūma".
Where this comes from
This definition is adapted from “thumb” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.