Yes. Ma is a Scrabble word.
No. Zen is not a legal Scrabble word.
No. IQ is not allowed in Scrabble.
No. Le is not allowed in Scrabble.
No. Rez is not a legal Scrabble word.
No. Av is not allowed in Scrabble.
No. Ac is not allowed in Scrabble.
No. NASA is not allowed in Scrabble.
Yes. Ma is a Scrabble word.
No. Zen is not a legal Scrabble word.
No. IQ is not allowed in Scrabble.
No. Le is not allowed in Scrabble.
No. Rez is not a legal Scrabble word.
The Official Scrabble Dictionary lists lo as an acceptable Scrabble word. It is used to attract attention or to express surprise.
No.
Yes. Colloid is allowed in Scrabble.
No. IV is not an acceptable word in scrabble.