The conical, nipple-like projection of the petrous part of the temporal bone, that is situated behind the ear in humans and many other vertebrates, and serves as a site of muscle attachment.

(anatomy) Being the process of the temporal bone behind the ear. / (zootomy) Being any of several bony elements that occupy a similar position in the skull of lower vertebrates.

(anatomy) Ellipsis of mastoid process.. / (medicine, informal) Clipping of mastoiditis.

(nautical) The top of a mast. / (US) A list of a newspaper or other periodical's main staff, contributing writers, publisher, circulation, advertising rates etc.

(transitive, nautical) To send to the masthead as a punishment. / (transitive) To furnish (a newspaper) with a masthead.

The position or authority of a master; dominion; command; supremacy; superiority. / Superiority in war or competition; victory; triumph; preeminence.

A key designed to open a set of several locks; a passkey. / (figuratively) Any tool or technique that can solve many types of difficulty.

Of or relating to masturbation. / Excessively self-absorbed or self-indulgent.

A skilled and experienced tradesman, especially one who has submitted a masterpiece to his guild.

One of an old breed of powerful, deep-chested, and smooth-coated dogs, used chiefly as watchdogs and guard dogs.