Yes, faint is a Scrabble word!

Verb

1. Pass out from weakness, physical or emotional distress due to a loss of blood supply to the brain

Adjective

1. Deficient in magnitude; barely perceptible; lacking clarity or brightness or loudness etc

2. Lacking clarity or distinctness

3. Lacking strength or vigor

4. Weak and likely to lose consciousness

5. Indistinctly understood or felt or perceived

6. Lacking conviction or boldness or courage

Noun

1. A spontaneous loss of consciousness caused by insufficient blood to the brain