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Tooth (Noun)

A means of enforcement; "the treaty had no teeth in it".

Nouns denoting acts or actions.

One of a number of uniform projections on a gear.

Nouns denoting man-made objects.

The gear had 32 teeth and was attached to the shaft with a small clip.
A worn tooth on the cog caused the gears to jam together.
Each tooth on the spur gear meshed perfectly with the teeth on the opposing gear.
The mechanical advantage of the system relied on the precise shape of the gear's teeth.
Inspecting the gear for worn or broken teeth was an essential part of regular maintenance.

Something resembling the tooth of an animal.

Nouns denoting man-made objects.

The mountain peak rose sharply, its jagged summit resembling a giant tooth piercing the sky.
The rocky outcropping jutted out of the ground like a shark's tooth, a hazard to unwary hikers.
The stalactite hung from the cave ceiling, its pointed tip a gleaming white tooth of stone.
The icicle clung to the eaves, a fragile tooth of frozen water that sparkled in the sunlight.
The fossilized relic was a massive tooth, a relic of a long-extinct monster that once ruled the ancient seas.