Letter That Isn’t a Vowel
Puzzle 3 of Safety First Hard Pack
Question is: Letter That Isn’t a Vowel
and the answer is: CONSONANT
Word Meaning:
CONSONANT — (phonetics) A sound that results from the passage of air through restrictions of the oral cavity; any sound that is not the dominant sound of a syllable, the dominant sound generally being a vowel.
Definitions from Wiktionary.