TL; DR In summary, syntax is the concept that concerns itself only whether or not the sentence is valid for the grammar of the language. Semantics is about whether or not the sentence has a valid meaning. Long answer: Syntax is about the structure or the grammar of the language. It answers the question: how do I construct a valid sentence? All languages, even English and other human (aka ...
The word "semantics" means the interpretation of the meaning of a word or sentence. So if someone says you are just with semantics they are probably trying to tell you that you are avoiding the ...
Semantics and morphology are closely related in linguistics. Semantics deals with the meaning of words and how they are used in sentences, while morphology focuses on the structure and formation ...
Semantics, and there can be more then one layer, even the textual message carries (Chomsky) semantics thus could be translated as meaning by form, creating functional differences to anything else in the output chain, including a human being, the reader.
A definition cribbed from here is The semantics of a programming language describe the relationship between the syntax and the model of computation.. This is pretty much exactly what your inferred definition was. The sticking point, and what made your eyes glaze over is precisely defining the model of computation. There are many different formal models of computation and each leads to a ...