Yes, lynx is a Scrabble word!
...and is worth 14 points in Scrabble, and 15 points in Words with Friends
lynx
Noun
1. A text browser
2. Short-tailed wildcats with usually tufted ears; valued for their fur
What Scrabble words can I make with the letters in lynx?
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Words that can be created with an extra letter added to lynx:
A:xylan