Yes, er is in the scrabble dictionary

...and is worth 2 points by itself.

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Er Definition

abbreviation

Earned run.
from Free Scrabble Dictionary
Emergency room.
from Free Scrabble Dictionary

symbol

Erbium.
from Free Scrabble Dictionary

residual

The chemical element erbium.
from Free Scrabble Dictionary
Emergency room.
from Free Scrabble Dictionary
King Edward.
from Free Scrabble Dictionary
Queen Elizabeth.
from Free Scrabble Dictionary

interjection

Used to express hesitation or uncertainty.
from The American Heritage Dictionary of the English Language, 4th Edition
Expressing hesitation:.
from Free Scrabble Dictionary

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Top Words by points

Points

er

2

2 letter words with ER

Points

er

2

re

2

Found 2 words in 0.1273 seconds