«الْمُشْتَرِي»
Al-mushtarī can mean the buyer or the planet Jupiter.
In a contract of sale it refers to the party purchasing goods. In astronomical discourse it identifies a celestial body. The word form is identical, while its meaning and implications differ.
In “seller and buyer,” the surrounding words make the commercial sense clear. This illustrates the role of context as a clue to intended meaning.
Where the context provides no such clue, merely recognizing the word does not determine which lexical sense is intended.