A gesture signifying approval or okay; a thumb pointing up out of a fist. / An approval or okay.

(US, idiomatic) A natural skill for gardening. / (US) A person with this skill.

(idiomatic) Clumsy; awkward; not dextrous.

(intransitive, chiefly Britain) To hitchhike.

Of a book, etc.: showing signs of frequent or heavy use; worn; well used.

A general guideline, rather than a strict rule; an approximate measure or means of reckoning based on experience or common knowledge. / (attributive, usually hyphenated) Approximated, guesstimated.

Alternative form of thumbs down

To disapprove with a thumbs-down sign.

Alternative form of thumbs up

To approve with a thumbs-up sign.