How many points is NOS worth in Scrabble?

NOS is worth 3 points in Scrabble.

Is NOS a valid Scrabble word?

Yes, NOS is a valid Scrabble word worth 3 points.

Yes, NOS is a valid Words With Friends word worth 4 points.

YES — NOS is a valid Scrabble word 3 points

Scrabble US/CAN: 3 pts | Words With Friends: 4 pts

NOS is a valid Scrabble US/CAN word worth 3 points:

N₁O₁S₁

NOS is valid in Scrabble UK (World) —

N₁O₁S₁

NOS is a valid Words With Friends word worth 4 points:

N₂O₁S₁

You can make 7 words from nos according to the Scrabble US and Canada dictionary.