Interpretation of Qur’anic vocabulary should give central weight to established usage among early Arabic speakers. Transmitted explanations from the Companions and Successors may also illuminate word meaning. A later dictionary gloss should not override better evidence of how a construction was actually used.
Words may have multiple senses, but their existence in a lexicon does not make all senses equally likely in every passage. Parts of speech, syntax, and both immediate and broader context guide selection.
Example: a term may have a literal and an extended use in Arabic. The interpreter must show which sense is suitable to the surrounding construction rather than arbitrarily choosing a desired gloss.