1 [mass noun] the method of human communication, either spoken or written, consisting of the use of words in a structured and conventional way:a study of the way children learn language [as modifier]:language development
a non-verbal method of expression or communication:body language
2a system of communication used by a particular country or community:the book was translated into twenty-five languages
Computing a system of symbols and rules for writing programs or algorithms:the systems were developed using languages such as Fortran and Basic
3 [mass noun] the style of a piece of writing or speech:he explained the procedure in simple, everyday language
the phraseology and vocabulary of a particular profession, domain, or group:legal language
(usually as bad/foul/strong language) coarse or offensive language:the film contains some violence and bad language
speak the same language
understand one another as a result of shared opinions or values:when it comes to business, we both speak the same language