The word Ser is misspelled against Serr, a verb meaning "To crowd, press, or drive together."
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Serr has double 'rr' in the end mispronounced as 'r'
Remember double 'RR' appears in the end of this word which should not be misspelled with single 'R'
Wrong Spelling:  se-r 
Correct Spelling:  se-rr 
Explore spell check of Serr to spell without errors.