The short thick 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.

(transitive) To touch or cover with the thumb. / (transitive, with through) To turn the pages of (a book) in order to read it cursorily. / (travel) To hitchhike

plural of thumb

Third-person singular simple present indicative form of thumb

present participle of thumb

The act by which something is thumbed.

(in combination) Having some specific type of thumb.

simple past tense and past participle of thumb

plural of thumbing

(idiomatic) Lack of skill at growing plants; something possessed by a poor gardener.