Webster’s Revised Unabridged Dictionary · 1913 Whose Whose (ho͞oz), pron. [OE. whos, whas, AS. hwæs, gen. of hwā. See Who.] The possessive case of who or which. See Who, and Which. Whose daughter art thou? tell me, I pray thee. Gen. xxiv. 23. The question whose solution I require. Dryden. ‹ Whortleberry Whosesoever ›