How many words start with WHO?

10, from 5 letters up to 5. All of them are on this page.

What is the highest scoring word that start with WHO?

WHOMP at 15 points in Scrabble, and WHOMP at 16 in Words With Friends, because the two games score the tiles differently.

WHOLE, WHOMP, WHOOF, WHOOP, WHOOT, WHOPS, WHORL, WHORT, WHOSE, WHOSO.

10 of them: WHOLE, WHOMP, WHOOF, WHOOP, WHOOT, WHOPS, WHORL, WHORT, WHOSE, WHOSO.

There are 10 of them. The highest scoring is WHOMP at 15 points in Scrabble, and the set averages 12.1.

Most common words first, then the rest A to Z.

The most familiar words on this page and what they mean. Tap any word for its full entry, score and anagrams.

WHOLE adjective including all components without exception
WHOMP verb hit with the hand
WHOOP verb shout, as if with joy or enthusiasm
WHOPS verb form of WHOP: strike hard
WHORL noun a round shape formed by a series of concentric circles (as formed by leaves or flower petals)

Definitions from Open English WordNet, CC BY 4.0.

All of them: Word lists.