(now chiefly historical) A manual worker; a labourer or artisan.

A large city in the Hejaz, Saudi Arabia, the holiest place in Islam, location of the sacred Ka'ba, and to which Muslims are required to make a hajj at least once in their lifetime, if possible.

(figuratively) Any place considered to be a very important place to visit by people with a particular interest.

(physics) The branch of physics which studies matter and energy at the level of atoms and other elementary particles, and substitutes probabilistic mechanisms in place of classical Newtonian ones.

(within a machine or machinery) Any mechanical means for the conversion or control of motion, or the transmission or control of power.

(engineering) The subfield of engineering concerned with designing and building machines and mechanical systems.

The ratio of the output force produced by a machine (especially a simple machine) to the applied input force.

To equip something with machinery. / To equip a military unit with tanks and other armed vehicles. / To make something routine, automatic or monotonous.

In a mechanical manner.

Referring to a period before the mechanization of farming or some other human activity.