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tooth

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tooth/ˈtuːθ/noun
pluralteeth/ˈtiːθ/
tooth
/ˈtuːθ/
noun
pluralteeth/ˈtiːθ/
Learner's definition of TOOTH  
[count]  : one of the hard white objects inside the mouth that are used for biting and chewing
[count]  : a sharp or pointed object that sticks out of something and is part of a row of similar objects
teeth [plural]  : the power that makes something effective

a kick in the teeth

— see 2kick

an eye for an eye and a tooth for a tooth

— see 1eye

by the skin of your teeth

— see 1skin

cut a tooth, cut your teeth

— see 1cut

fly in the teeth of

— see 1fly

get/take the bit between your teeth

— see 2bit

get your teeth into

or chiefly USsink your teeth into
: to become fully involved in (something, such as a new activity) : to do or deal with (something) with a lot of energy, interest, etc.

grit your teeth

— see 2grit

in the teeth of

orinto the teeth of
: directly against (a strong wind, storm, etc.)
: despite (something)

like pulling teeth

— used to say that something is very difficult and frustrating

long in the tooth

informal
: no longer young : old

set your teeth on edge

◊ If a sound, taste, etc., sets your teeth on edge, it makes your body feel tense or uncomfortable.

tooth and nail

: with a lot of effort and determination

to the teeth

: fully or completely
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