Bilhead or Billhead: How To spell?

The word Bilhead is misspelled against Billhead, a noun meaning "A printed form, used by merchants in making out bills or rendering accounts."

--> Billhead has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings bi & head which should not be misspelled with single 'L'
Wrong Spelling:  bi-l-head 
Correct Spelling:  bi-ll-head 
Find more wrongly spelled words of Billhead to spell it well.

-->