Seldsen or Seldseen: How To spell?

The word Seldsen is misspelled against Seldseen, an adjective meaning "Seldom seen."

--> Seldseen has double "ee" is mispronounced as "e"
Remember double 'EE' in between the strings Selds & n which should not be misspelled with single 'E'
Wrong Spelling:  Selds-e-n 
Correct Spelling:  Selds-ee-n 
Explore spell check of Seldseen to spell without errors.

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