Yes, prettier is a real word.
Prettier is an adjective.
"There is no one who is prettier than my mom!"
The word prettier is an adjective. It describes something that is more pretty.
prettier
She looked much prettier after putting on lipstick and brushing her hair.
prettier, prettiest
There was one girl who considered herself prettier than all other girls. This is a sentence containing the word prettier.
The word "prettier" has three syllables. It is pronounced as pret-tee-er.
prettier, prettiest
Alice is pretty; however, Olivia is prettier.
Aloha: Malu, or prettier, the whole word - maluhia [ma-loo he-ah]
prettier than what?