Loading word page…
Updated June 2026
A chemical group derived from an organic acid by removal of a hydroxyl group.
“The acyl group was transferred during the reaction.”
Y as a vowel substitute — unusual pattern.
Worth 9 points. Y adds 4 points.
Look up acyl in an authoritative dictionary for full definitions, pronunciation, and etymology.

Download Word Challenge for unlimited word puzzles, a fresh Daily Challenge, and head-to-head multiplayer. Guess the hidden word in six tries or fewer!