The word Firewod is misspelled against Firewood, a noun meaning "Wood for fuel."
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Firewood has double "oo" is mispronounced as "o"
Remember double 'OO' in between the strings firew & d which should not be misspelled with single 'O'
Wrong Spelling:  firew-o-d 
Correct Spelling:  firew-oo-d 
Find more incorrect spellings of Firewood to spell right way.