Yes, rums is a Scrabble word!
...and is worth 6 points in Scrabble, and 8 points in Words with Friends
rums
Noun
1. Liquor distilled from fermented molasses
2. A card game based on collecting sets and sequences; the winner is the first to meld all their cards
What Scrabble words can I make with the letters in rums?
3 Letter Words
2 Letter Words