A long vowel is a vowel that is pronounced the same as the name of the letter. For example, the “U” is pronounced like “you,” not like “a” which would be the sound of a short vowel.
Sometimes a long vowel is combined with another vowel.
Long Vowel Words Chart
Now that you understand long vowels, check out this Vowel Words chart to find vowels with each of the long vowel pronounciation sounds: