Alliteration

Alliteration is when a sentence or phrase has many words that do not necessarily start with the same letter, but it seems like a lot of the time it does. It is commonly used in advertising, poetry, headlines, and tongue-twisters. Basically the first consonant repeats itself throughout the sentence.

An example of alliteration is "Sally sold sea shells so she should sleep soundly so so so so sweet", and "Sally sold sea shells down by the sea shore".