A small apartment attached to or carved out of a nominally single-family house, ostensibly intended for occupancy by a mother-in-law or other relative, but potentially also rented out to a stranger.

(US) The mother of a child actor.

(transitive) To make something mobile. / (transitive) To assemble troops and their equipment in a coordinated fashion so as to be ready for war. / (intransitive) To become made ready for war.

A European rodent, Apodemus sylvaticus, that tends to live in hedgerows. / (US) The white-footed mouse of America.

(medicine) Abnormal dryness of the mouth

A period of silence for quiet meditation, prayer or reflection.

(idiomatic) To spend money foolishly or indiscriminately; to waste money without regard of the consequences.

A feature included on some cellular phones or laptops which disables the radio, thus precluding any interference with avionics. In this mode the phone's stand-alone features (such as its games or scheduler) can be used safely in environments requiring minimal radio interference.

Alternative spelling of sulfur monoxide

(inorganic chemistry) An unstable binary compound, SO, of sulfur and oxygen.