Is “Oh” a Scrabble word?
Yes
OH
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Oh
/əʊ/
noun
1.An utterance of oh; a spoken expression of surprise, acknowledgement, etc.
verb
1.To utter the interjection oh; to express surprise, etc.
interjection
1.Expression of surprise.
“Oh! I didn't see you there.”
2.Expression of wonder, amazement, or awe.
“Oh, wow! That's amazing.”
3.Expression of understanding, affirmation, recognition, or realization.
“Oh, so that's how it works.”