semantics

noun

1. A branch of linguistics studying the meaning of words.“Semantics is a foundation of lexicography.”
2. The study of the relationship between words and their meanings.
3. The individual meanings of words, as opposed to the overall meaning of a passage.“The semantics of a single preposition is a dissertation in itself.”
4. The meaning of computer language constructs, in contrast to their form or syntax.“file sharing and locking semantics”