Definition of tooth noun from the Oxford Advanced American Dictionary

      

    tooth

     noun
    noun
    NAmE//tuθ//
     
    (pl. teeth
    NAmE//tiθ//
     
    )
     
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  1. 1any of the hard white structures in the mouth used for biting and chewing food I've just had a tooth out at the dentist's. to brush/clean your teeth tooth decay She answered through clenched teeth (= opening her mouth only a little because of anger). The cat sank its teeth into his finger. Topic CollocationsPhysical AppearanceA person may be described as having:eyes (bright) blue/green/(dark/light) brown/hazel eyes deep-set/sunken/bulging/protruding eyes small/beady/sparkling/twinkling/shifty eyes piercing/penetrating/steely eyes bloodshot/watery/puffy eyes bushy/thick/dark/raised/arched eyebrows long/dark/thick/curly/false eyelashes/lashesface a flat/bulbous/pointed/sharp/snub nose a straight/a pointy/a Roman/an aquiline nose full/thick/thin/pouty lips dry/chapped/cracked lips flushed/rosy/red/ruddy/pale cheeks soft/chubby/sunken cheeks white/perfect/crooked/protruding teeth a large/high/broad/wide forehead a strong/weak/pointed/double chin a long/full/bushy/wispy beard a full/thin goatee a long/thin/bushy/droopy/handlebar/pencil mustachehair and skin pale/fair/olive/dark/tanned skin dry/oily/smooth/rough/leathery/wrinkled skin a dark/pale/light/sallow/ruddy/olive/swarthy/clear complexion deep/fine/small/facial wrinkles blonde/blond/fair/(light/dark) brown/(jet-)black/auburn/red/ginger/gray hair straight/curly/wavy/frizzy/spiky hair thick/thin/fine/bushy/thinning hair dyed/bleached/soft/silky/dry/greasy/shiny hair long/short/shoulder-length/cropped hair a bald/balding/shaved head a receding hairline a bald patch/spot a side/center partbody a long/short/thick/slender/ (disapproving) scrawny neck broad/narrow/sloping/rounded/hunched shoulders a bare/broad/muscular/small/large chest a flat/round/swollen/bulging stomach a small/tiny/narrow/slim/slender/28-inch waist big/wide/narrow/slim hips a straight/bent/arched/broad/hairy back thin/slender/muscular arms big/large/small/manicured/calloused/gloved hands long/short/fat/slender/delicate/bony fingers long/muscular/hairy/shapely/ (informal) (often disapproving) skinny/spindly legs muscular/chubby/ (informal) (disapproving) flabby thighs/calves big/little/small/dainty/wide/narrow/bare feet a good/slim/slender/hourglass figure be of slim/medium/average/large/athletic/stocky build see also baby tooth, buck teeth, false teeth, wisdom tooth
  2. 2a narrow pointed part that sticks out of an object the teeth on a saw The teeth of the cog should fit into these grooves.
  3. Idioms
    armed to the teeth
     
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    having many weapons
    bare your teeth
     
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    to show your teeth in an aggressive and threatening way The dog bared its teeth and growled.
    by the skin of your teeth(informal)
     
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    if you do something by the skin of your teeth, you only just manage to do it He escaped defeat by the skin of his teeth.
    cut your teeth on something
     
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    to do something that gives you your first experience of a particular type of work She cut her teeth on local radio.
    cut a tooth
     
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    (of a baby) to grow a new tooth
    an eye for an eye (and a tooth for a tooth)(saying)
     
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    used to say that you should punish someone by doing to them what they have done to you or to someone else They advocate a justice system that works on the principle of an eye for an eye.
    fight tooth and nail
     
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    to fight in a very determined way for what you want The residents are fighting tooth and nail to stop the new development.
    get the bit between your teeth(informal)
     
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    to become very enthusiastic about something that you have started to do so that you are unlikely to stop until you have finished
    get your teeth into something(informal)
     
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    to put a lot of effort and enthusiasm into something that is difficult enough to keep you interested Choose an essay topic that you can really get your teeth into.
    give your eyeteeth for something/to do something(informal)
     
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    used when you are saying that you want something very much I'd give my eyeteeth to own a car like that.
    gnash your teeth
     
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    to feel very angry and upset about something, especially because you cannot get what you want He'll be gnashing his teeth when he hears that we lost the contract. The news caused great wailing and gnashing of teeth.
      grit your teeth
       
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    1. 1to bite your teeth tightly together She gritted her teeth against the pain. “Stop it!” he said through gritted teeth.
    2. 2 to be determined to continue to do something in a difficult or unpleasant situation It started to rain harder, but we gritted our teeth and kept going.
    have a sweet tooth(informal)
     
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    to like food that contains a lot of sugar
    have teeth(informal)
     
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    (of an organization, a law, etc.) to be powerful and effective
      in the teeth of something
       
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    1. 1despite problems, opposition, etc. The new policy was adopted in the teeth of fierce criticism.
    2. 2in the direction that a strong wind is coming from They crossed the bay in the teeth of a howling gale.
    kick somebody in the teeth/stomach
     
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    to disappoint someone greatly or fail to give them help when they need it
    a kick in the teeth(informal)
     
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    a great disappointment; something that hurts someone or something emotionally The job losses are a kick in the teeth for the union.
    lie through your teeth(informal)
     
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    to say something that is not true at all The witness was clearly lying through his teeth.
    long in the tooth(humorous)
     
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    old or too old This originally referred to the fact that a horse's teeth appear to be longer as it grows older, because its gums shrink.
    set somebody's teeth on edge
     
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    (of a sound or taste) to make someone feel physically uncomfortable Just the sound of her voice sets my teeth on edge.
See the Oxford Advanced Learner's Dictionary entry: tooth