Definition, Meaning & Synonyms
thumb
noun
/θʌm/

Definition
The short, thick first digit of the human hand, often opposable and capable of grasping.

Examples
- She gave a thumbs-up to indicate her approval.
- He accidentally hurt his thumb while hammering a nail.
- The thumb is essential for holding a pencil correctly.

Meaning
In human anatomy, the thumb is the opposable digit that aids in grasping objects and is crucial for fine motor skills.

Synonyms
- digit
- appendage