That's what words do: they compare; one could not have a dictionary that only defined a single word; what would you use to make that string of letters meaningful without other words; that's our sentence, we language mediators: we are stuck in an infinite regression eating our vestigial, invisible tales, wreaking havoc on reality with unrealities specially designed to get to a particular end, a concept that only exists in the imagination of beings that use words in place of less ideal faculties.