How many words start with UP?

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

What is the highest scoring word that start with UP?

UPJET at 14 points in Scrabble, and UPJET at 18 in Words With Friends, because the two games score the tiles differently.

UPBOW, UPBYE, UPDOS, UPDRY, UPEND, UPJET, UPLAY, UPLED, UPLIT, UPPED and 9 more on this page.

19 of them: UPBOW, UPBYE, UPDOS, UPDRY, UPEND, UPJET, UPLAY, UPLED, UPLIT, UPPED and more.

There are 19 of them. The highest scoring is UPJET at 14 points in Scrabble, and the set averages 9.1.

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.

UPPER noun the higher of two berths
UPSET noun an unhappy and worried mental state
UPEND verb become turned or set on end
UPPED adjective form of UP: being or moving higher in position or greater in some value

Definitions from Open English WordNet, CC BY 4.0.

All of them: Word lists.