its called data redundancy.
repetition
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They are called lines
The lines for depression are called hachured lines
The repetition of similar sounds at the end of lines of poetry is called rhyme. Rhyme is often used to create musicality and enhance the overall aesthetic of a poem.
Each repetition is called a trial or sometimes a replicate.
refrain
refrain
This is a refrain or chorus.
Each repetition is called a trial or sometimes a replicate.
That repetition would involve an onomatopoeia.
anaphora
Alliteration is the repetition of the same consonant sounds and assonance is the repetition of the same vowel sounds.
The repetition of vowel sounds within a word is called vowel rhyme.
consonance
Repetition of consonant sounds at the beginning of words is called alliteration, otherwise it's called consonance.