Is “Er” a Scrabble word?
Yes
ER
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 Er
/ɜː/
verb
1.To utter the word "er" when hesitating in speech, found in the phrase um and er.
“He ummed and erred his way through the presentation.”
interjection
1.Said when hesitating in speech.