What is the meaning of Doughnut?

A deep-fried piece of dough or batter, usually mixed with various sweeteners and flavors, often made in a toroidal or ellipsoidal shape flattened sphere shape filled with jelly/jam, custard, or cream.

Any object in the shape of a torus.

A circular life raft.

A toroidal vacuum chamber.

A peel-out or skid mark in the shape of a circle; a 360-degree skid.

A spare car tyre, usually stored in the boot, that is smaller than a full-sized tyre and is only intended for temporary use.

A kind of tyre for an airplane.

A vulva; by extension, a woman's virginity.

A puffy anus with the outward shape of a donut; more generally, any anus.

A foolish or stupid person; an idiot.

A toroidal cushion typically used by hemorrhoid patients.

A whole note.

To encircle something.

Source: wiktionary.org