Definition of cinemas:
(n) :
(countable) A movie theatre, a movie house.
(n) :
(film, uncountable) Films collectively.
(n) :
(film, uncountable) The film and movie industry.
(n) :
(film, countable, uncountable) The art of making films and movies; cinematography.
(n) :
(Internet slang, uncountable) A sophisticated or exemplary film, representative of the art of cinema.
(n) :
(by extension, humorous) Any media or event that is exemplary.