Definition of rooming:
(n) :
(uncountable) Space for something, or to carry out an activity.
(n) :
(uncountable, figuratively) Sufficient space for or to do something.
(n) :
(nautical) A space between the timbers of a ship's frame.
(n) :
(countable) A separate part of a building, enclosed by walls, a floor and a ceiling.
(n) :
(countable, with possessive pronoun) (One's) bedroom.
(n) :
(in the plural) A set of rooms inhabited by someone; one's lodgings.