semantics /sɪˈmæntɪks/ noun6 •A branch of linguistics studying the meaning of words.Semantics is a foundation of lexicography. •The study of the relationship between words and their meanings. •The meaning or set of meanings of a linguistic element, such as a word, morpheme or utterance.In very ancient or poorly documented languages, the precise semantics of words tend to be uncertain. •The meanings of individual words, as opposed to the overall meaning of a passage.The semantics of the terms used are debatable. •The meaning of computer language constructs, in contrast to their form or syntax. •(informal) Pettiness or triviality.Who cares? This is all just semantics!