Repeated vowel sounds is assonance.
Repeated consonant sounds (in a word or words) is consonance.
The repetition of stressed consonants is called alliteration.
The applicable term is assonance, which often creates rhymes.
A necessary feature for a pattern is repetition or predictability. Patterns are defined by the regularity in which elements are repeated or follow a specific sequence. Without this feature, it would not be considered a pattern.
This is known as internal rhyme. Internal rhyme occurs when words within the same line or within nearby lines of poetry have the same vowel sounds but different consonant sounds. It can add musicality and emphasis to the language.
9999
8889
There's 2 words without consonant: 1.) a 2.) I
9774
9876 - 123= 9753
The largest 4 digit number with repetition is 9999. The smallest 3 digit number without repetition is 102 9999 - 102 = 9897
Largest 4 digit number with repetition is 9999 Largest 3 digit number without repetition is 987 Difference is 9999 - 987 = 9012.
9876-102 9704
8888