You searched for: “vowels
vowel (s) (noun), vowels (pl)
1. A speech sound made with the vocal tract open: "Oh!", said Jane when she repeated what her baby girl had uttered, encouraging her to repeat this vowel again!
2. A letter of the alphabet that represents a spoken sound: In English, the vowels are "a", "e", "i", "o", "u", and sometimes "y".