Any of the concentric rings formed in the trunk of a tree by the annual growth of wood

The annual growth ring in the trunk of a tree.

A ring-shaped piece of onion formed from a way of cutting through the natural shell structure of the onion. / A food composed of onions cut into rings, that are then battered and deep-fried.

a round metal ring, approximately 1 cm high, used when cooking to prevent an egg spreading across the cooking surface.

plural of egg ring

Pusa hispida, an earless seal inhabiting Arctic and subarctic coasts.

A space, usually square, with elastic ropes around the edge, in which a boxing match is fought.

plural of spy ring

A network of spies.

The branch of mathematics dealing with the algebraic structure of rings.