Yes, income is a Scrabble word!
...and is worth 10 points in Scrabble, and 13 points in Words with Friends
income
Noun
1. The financial gain (earned or unearned) accruing over a given period of time
What Scrabble words can I make with the letters in income?
5 Letter Words
4 Letter Words
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3 Letter Words
2 Letter Words