The word Gliden is misspelled against Glidden, which is past perfect of "Glide."
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Glidden has double "dd" is mispronounced as "d"
Remember double 'DD' in between the strings Gli & en which should not be misspelled with single 'D'
Wrong Spelling:  Gli-d-en 
Correct Spelling:  Gli-dd-en 
Find more wrongly spelled words of Glidden to spell it well.