Yes, gross is a Scrabble word!
...and is worth 6 points in Scrabble, and 7 points in Words with Friends
gross
Verb
1. Earn before taxes, expenses, etc.
Adjective
1. Before any deductions
2. Lacking fine distinctions or detail
3. Repellently fat
4. Visible to the naked eye (especially of rocks and anatomical features)
5. Without qualification; used informally as (often pejorative) intensifiers
6. Conspicuously and tastelessly indecent
7. Conspicuously and outrageously bad or reprehensible
Noun
1. Twelve dozen
2. The entire amount of income before any deductions are made
What Scrabble words can I make with the letters in gross?
3 Letter Words
2 Letter Words