Answer:
Taken From J. Searle's "What is a speech act?". "Speech acts are characteristically performed in the utterence of sounds or the making of marks" (p.257). "... the sounds or marks one makes in the performance of a speech act are characteristically said to have meaning, and a second related difference is that one is characteristically said to mean something by those sounds or marks" (p.258). Speech act can also be called a Language or Linguistic act.