Fangs, choppers, or dentures

noun

1. One of the hard bony appendages that are borne on the jaws or in many of the lower vertebrates on other bones in the walls of the mouth or pharynx and serve especially for the prehension and mastication of food and as weapons of offense and defense
2. Any of various usually hard and sharp processes especially about the mouth of an invertebrate
3. Any of the regular projections on the circumference or sometimes the face of a wheel that engage with corresponding projections on another wheel especially to transmit force cog
4. A small sharp-pointed marginal lobe or process on a plant
5. Effective means of enforcement

   "drug laws with teeth"

6. Something that injures, tortures, devours, or destroys

   "jealousy with rankling tooth"

7. Taste, liking
8. A roughness of surface produced by mechanical or artificial means

plural noun

1. Seeds of strife
2. Wedge-shaped concrete antitank barriers laid in multiple rows

noun phrase

1. Something that is very shocking and disappointing

   "Losing that game was a real kick in the teeth."

idiom

1. Carrying many weapons

   "The police were armed to the teeth."

idiom

1. To become fully involved in (something, such as a new activity) to do or deal with (something) with a lot of energy, interest, etc.

   "He finally has a project he can get his teeth into."

idiom

1. To start doing something in a very enthusiastic and determined way

   "He can be lazy about doing his work, but when he gets the bit between his teeth there's no stopping him."

idiom

1. To grind one's teeth together

   "He gnashed his teeth in his sleep."

2. To show one is angry, upset, etc.

   "His opponents have been gnashing their teeth in/with frustration since he won the election."

idiom

1. To press or rub the teeth together

   "He gritted his teeth in anger/pain."

2. To show courage and determination when dealing with problems or challenges

   "Starting your own business can be very tough, but you just have to grit your teeth and keep working at it."

idiom

1. To say something completely untrue

   "She was obviously lying through her teeth."