Definitions of why
The word why uses 3 letters:hwy.
WHY is playable in:
adv. - For what cause, reason, or purpose; on what account; wherefore; -- used interrogatively. See the Note under What, pron., 1. 2
adv. - For which; on account of which; -- used relatively. 2
adv. - The reason or cause for which; that on account of which; on what account; as, I know not why he left town so suddenly; -- used as a compound relative. 2
n. - A young heifer. 2