Yes, hawk is a Scrabble word!
...and is worth 14 points in Scrabble, and 13 points in Words with Friends
hawk
Verb
1. Sell or offer for sale from place to place
2. Hunt with hawks
3. Clear mucus or food from one's throat
Noun
1. Diurnal bird of prey typically having short rounded wings and a long tail
2. An advocate of an aggressive policy on foreign relations
3. A square board with a handle underneath; used by masons to hold or carry mortar
What Scrabble words can I make with the letters in hawk?
3 Letter Words
2 Letter Words