1. What is Pragmatics?
1.3. Sentence meaning vs. Utterance meaning.
A sentence is a linguistic expression, a well-formed string of words, while an utterance is a speech event by a particular speaker in a specific context. When a speaker uses a sentence in a specific context, he produces an utterance.
the term sentence meaning refers to the semantic content of the sentence: the meaning which derives from the words themselves, regardless of context. The term utterance meaning refers to the semantic content plus any pragmatic meaning created by the specific way in which the sentence gets used.
Reference: Kroeger, P. R. (2018). Analyzing meaning: An introduction to semantics and pragmatics. Textbooks in Language Sciences 5. Berlin: Language Science Press.