[daviddaviddavid]

I would add HP Grice to the list of startlingly clear ordinary language philosophers. His 1957 essay "Meaning" has this definition:

"A means something by x" is equivalent to "A intended the utterance of x to produce some effect in an audience by means of the recognition of this intention".

It may seem less than clear taken out of context, but there is a wonderful argument working toward the definition and once he finally presents it, it's a bit of a mic drop moment.

Also, he is one of the few philosophers whose work proved to be foundational in linguistics. Any book/course in pragmatics will talk about Grice's work on implicature and background knowledge.