mole

a small dark animal that lives under the earth, using its wide front feet to push out long holes

Any of the burrowing rodents also called mole-rats.

A naevus, a pigmented, slightly raised, and sometimes hairy spot on the skin.

An internal spy; a person who involves themself with an enemy organisation, especially an intelligence or governmental organisation, to determine and betray its secrets from within.

In the International System of Units, the base unit of amount of substance; the amount of substance of a system which contains exactly 6.02214076×10²³ elementary entities (atoms, ions, molecules, etc.). Symbol: mol. The number of atoms is known as Avogadro’s number.

A massive structure, usually of stone, used as a pier, breakwater or junction between places separated by water.

A kind of self-propelled excavator used to form underground drains, or to clear underground pipelines.

A type of underground drain used in farm fields, in which a mole plow creates an unlined channel through clay subsoil.

(rare) A haven or harbour, protected with such a breakwater.

A hemorrhagic mass of tissue in the uterus caused by a dead ovum.

(slang, offensive) A moll, a bitch, a slut.

(historical) An Ancient Roman mausoleum.

To create a network of channels in (waterlogged soil) to improve drainage.

Any of several spicy sauces typical of the cuisine of Mexico and neighboring Central America countries, especially one that contains chocolate and is used in cooking main dishes, not desserts.