Yes, jail is a Scrabble word!
...and is worth 11 points in Scrabble, and 14 points in Words with Friends
jail
Verb
1. Lock up or confine, in or as in a jail
Noun
1. A correctional institution used to detain persons who are in the lawful custody of the government (either accused persons awaiting trial or convicted persons serving a sentence)
What Scrabble words can I make with the letters in jail?
3 Letter Words
2 Letter Words
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Words that can be created with an extra letter added to jail:
S:jails