Perfect rhyme
Perfect rhyme — also called full rhyme, exact rhyme, or true rhyme — is a form of rhyme between two words or phrases, satisfying the following conditions:
Word pairs that satisfy the first condition but not the second (such as the aforementioned "leave" and "believe") are technically identities (also known as identical rhymes or identicals). Homophones are sometimes classified as identical rhymes, though the classification isn't entirely accurate.