The part of a glove or mitten that covers the thumb.
Architecture An ovolo.
To scan (written matter) by turning over pages with or as if with the thumb.
To disarrange, soil, or wear by careless or frequent handling.
Informal To solicit (a ride) from a passing vehicle by signaling with the thumb.
To scan written matter by turning over pages with or as if with the thumb: thumbed through the latest issue of the magazine.
Informal To hitchhike.
all thumbs Lacking physical coordination, skill, or grace; clumsy.
thumb (one's) nose To express scorn or ridicule by or as if by placing the thumb on the nose and wiggling the fingers.
thumbs down An expression of rejection, refusal, or disapproval.
thumbs up An expression of approval, success, or hope.
under (one's) thumb Under the control of someone; subordinate to.