The word Mer is misspelled against Meer, a noun meaning "A boundary. See Mere."
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Meer has double "ee" is mispronounced as "e"
Remember double 'EE' in between the strings M & r which should not be misspelled with single 'E'
Wrong Spelling:  M-e-r 
Correct Spelling:  M-ee-r 
Explore spell check of Meer to spell without errors.