How many words start with SP?

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

What is the highest scoring word that start with SP?

SPITZ at 16 points in Scrabble, and SPITZ at 17 in Words With Friends, because the two games score the tiles differently.

SPACE, SPACY, SPADE, SPADO, SPAED, SPAER, SPAES, SPAGS, SPAHI, SPAIL and 129 more on this page.

139 of them: SPACE, SPACY, SPADE, SPADO, SPAED, SPAER, SPAES, SPAGS, SPAHI, SPAIL and more.

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.

SPACE noun the unlimited expanse in which everything is located
SPEED noun distance travelled per unit time
SPORT noun an active diversion requiring physical exertion and competition
SPEAK verb express in speech
SPENT adjective depleted of energy, force, or strength
SPEND verb use up a period of time in a specific way
SPECS noun (plural) optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision
SPLIT noun extending the legs at right angles to the trunk (one in front and the other in back)
SPRAY noun a pesticide in suspension or solution
SPOKE noun support consisting of a radial member of a wheel joining the hub to the rim

Definitions from Open English WordNet, CC BY 4.0.

All of them: Word lists.