Perfect and imperfect rhymes
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: The stressed vowel sound in both words must be identical, as well as any subsequent sounds. For example, the words kit and bit form a perfect rhyme, as do spaghetti and already in American accents.
Source: Wikipedia — Perfect and imperfect rhymes (CC BY-SA 4.0)