Not quite. Sapir-Whorf is specifically about the _structure_ of a language, meaning its syntax, morphology, etc.
Vocabulary choice obviously influences how you interpret a specific utterance, but Sapir-Whorf is about how a language's structure influences its speakers' cognition at a basic level, i.e. _how_ they think, not _what_ they think.
Vocabulary choice obviously influences how you interpret a specific utterance, but Sapir-Whorf is about how a language's structure influences its speakers' cognition at a basic level, i.e. _how_ they think, not _what_ they think.