Yes, even is a Scrabble word!

Adverb

1. Used as an intensive especially to indicate something unexpected

2. In spite of; notwithstanding

3. To a greater degree or extent; used with comparisons

4. To the full extent

Verb

1. Make level or straight

2. Become even or more even

3. Make even or more even

Adjective

1. Divisible by two

2. Equal in degree or extent or amount; or equally matched or balanced

3. Being level or straight or regular and without variation as e.g. in shape or texture; or being in the same plane or at the same height as something else (i.e. even with)

4. Symmetrically arranged

5. Occurring at fixed intervals

6. Of the score in a contest

Noun

1. The latter part of the day (the period of decreasing daylight from late afternoon until nightfall)