IPA: /ˈvaʊəld/
KK: /ˈvaʊəld/
Having a certain type or number of vowel sounds or letters.
The word 'aeroplane' is vowelled with four vowels.
Vowelled → It is formed from "vowel" (from Old French *vowel*, meaning a letter representing a sound in speech) and "-ed" (a suffix indicating a completed action). The word "vowelled" means having been marked or characterized by vowels.
Think of the word 'vowel' as representing the sounds in speech, and remember that 'vowelled' means something that has been marked by these sounds.