Yes, yagi is a Scrabble word!
...and is worth 8 points in Scrabble, and 8 points in Words with Friends
yagi
Noun
1. A sharply directional antenna
What Scrabble words can I make with the letters in yagi?
3 Letter Words
2 Letter Words
Noun
1. A sharply directional antenna
3 Letter Words
2 Letter Words