Yes, ers is in the scrabble dictionary

...and is worth 3 points by itself.

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Ers Definition

verb

Third-person singular simple present indicative form of er.
from the English-language Wiktionary

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Top Words by points

Points

ers

3

2 letter words with ERS

Points

er

2

es

2

re

2

3 letter words with ERS

Points

ers

3

res

3

ser

3

Found 6 words in 0.10801 seconds