This is a general linguistics question that I've been scratching my head over. I am SURE there is a term for two words that start with the same letter. I don't mean alliteration, I mean it in this context: the word "book" and "banter" start with the same letter, therefore they are ____(WHAT?)_____. It's gotta be something similar to the terms homonym (a word that has the same spelling and pronunciation but a different meaning), homograph and homophone etc (as homo of course means "the same"). Obviously it's not alliteration because I'm not talking about a sequence of words starting with the same letter, just a term to describe the relationship between words with the same first letter. Given that we have entire fields of linguistical/lexicological study, there's *gotta* be a term. Even crossword or scrabble gurus might have a word for it. But google can't reveal any light. Anyone know? Furthermore, there ought to be some jargonistic term for two sentences whose words all start with the same letter as each other. E.g.: "John likes to play." and "Jeremy leaves the park." But I'm not expecting some crazy term for that one. Anyway...thanks for your help/thoughts.