'Thumb' definitions:

Definition of 'thumb'

From: WordNet
noun
The thick short innermost digit of the forelimb [syn: thumb, pollex]
noun
The part of a glove that provides a covering for the thumb
noun
A convex molding having a cross section in the form of a quarter of a circle or of an ellipse [syn: ovolo, thumb, quarter round]
verb
Travel by getting free rides from motorists [syn: hitchhike, hitch, thumb]
verb
Look through a book or other written material; "He thumbed through the report"; "She leafed through the volume" [syn: flick, flip, thumb, riffle, leaf, riff]
verb
Feel or handle with the fingers; "finger the binding of the book" [syn: finger, thumb]

Definition of 'Thumb'

From: GCIDE
  • Thumb \Thumb\, v. t. [imp. & p. p. Thumbed; p. pr. & vb. n. Thumbing.]
  • 1. To handle awkwardly. --Johnson. [1913 Webster]
  • 2. To play with the thumbs, or with the thumbs and fingers; as, to thumb over a tune. [1913 Webster]
  • 3. To soil or wear with the thumb or the fingers; to soil, or wear out, by frequent handling; also, to cover with the thumb; as, to thumb the touch-hole of a cannon. [1913 Webster]
  • He gravely informed the enemy that all his cards had been thumbed to pieces, and begged them to let him have a few more packs. --Macaulay. [1913 Webster]

Definition of 'Thumb'

From: GCIDE
  • Thumb \Thumb\, n. [OE. thombe, thoumbe, [thorn]ume, AS. [thorn][=u]ma; akin to OFries. th[=u]ma, D. duim, G. daumen, OHG. d[=u]mo, Icel. [thorn]umall, Dan. tommelfinger, Sw. tumme, and perhaps to L. tumere to swell. [root]56. Cf. Thimble, Tumid.] The short, thick first digit of the human hand, differing from the other fingers in having but two phalanges; the pollex. See Pollex. [1913 Webster]
  • Upon his thumb he had of gold a ring. --Chaucer. [1913 Webster]
  • Thumb band, a twist of anything as thick as the thumb. --Mortimer.
  • Thumb blue, indigo in the form of small balls or lumps, used by washerwomen to blue linen, and the like.
  • Thumb latch, a door latch having a lever formed to be pressed by the thumb.
  • Thumb mark. (a) The mark left by the impression of a thumb, as on the leaves of a book. --Longfellow. (b) The dark spot over each foot in finely bred black and tan terriers.
  • Thumb nut, a nut for a screw, having wings to grasp between the thumb and fingers in turning it; also, a nut with a knurled rim for the same perpose.
  • Thumb ring, a ring worn on the thumb. --Shak.
  • Thumb stall. (a) A kind of thimble or ferrule of iron, or leather, for protecting the thumb in making sails, and in other work. (b) (Mil.) A buckskin cushion worn on the thumb, and used to close the vent of a cannon while it is sponged, or loaded.
  • Under one's thumb, completely under one's power or influence; in a condition of subservience. [Colloq.] [1913 Webster]

Definition of 'Thumb'

From: GCIDE
  • Thumb \Thumb\, v. i. To play with the thumb or thumbs; to play clumsily; to thrum. [1913 Webster]

Synonyms of 'thumb'

From: Moby Thesaurus