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thrusting
thruway
Thu
thud
thug
thuggee
thuja
thulium
thumb
thumb index
thumb knot
thumb piano
thumbhole
thumbnail
thumbnut
thumbprint
thumbs down
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thumb

thumb [ thum ]


noun  (plural thumbs)
Definition:
 
1. thickest digit on human hand: the thickest digit of the human hand, located next to the forefinger. It can be moved to face and touch the other fingers so that objects can be grasped.

2. animal's digit resembling human thumb: a short thick digit in some animals, e.g. in many primates, that is adapted for grasping and corresponds to the human thumb

3. section of glove for thumb: the part of a glove or mitten that covers the thumb

4. architecture 
Same as  ovolo




verb  (past and past participle thumbed, present participle thumb·ing, 3rd person present singular thumbs)
Definition:
 
1. transitive and intransitive verb hitch ride: to obtain or try to obtain a ride by signaling with the thumb to passing drivers

2. transitive verb make something dirty by use: to soil or cause wear on something, especially a book, by repeated handling ( often passive )
a well-thumbed book

3. transitive and intransitive verb flip through printed matter: to glance through the pages of a book or magazine

[ Old English þúma< Indo-European]

thumb·less adjective

all thumbs extremely awkward or clumsy

stick out like a sore thumb to be completely obvious, or conspicuously out of place

twiddle your thumbs to be idle or unoccupied, especially involuntarily

under somebody's thumb under the influence and control of somebody

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