Yes, dash is in the scrabble dictionary

Dash Definition

noun

A dashboard.

A quick stroke, as with a pencil or brush.

A small amount of an added ingredient: a dash of sherry.

A spirited quality in action or style; verve. See Synonyms at vigor.

A splash.

verb-transitive

To add an enlivening or altering element to.

To affect by adding another element or ingredient to: ice cream that was dashed with rum.

To break or smash by striking violently.

To confound; abash.

To &*%$#.

verb-intransitive

To move with haste; rush: dashed to the door.

To strike violently; smash.

verb

To break by striking or knocking.

To knock, hurl, or thrust violently.

To make ashamed.

To affect by mixing in something different .

To complete, execute, or finish off hastily .