Thickbil or Thickbill: How To spell?
The word Thickbil is misspelled against Thickbill, a noun meaning "The bullfinch."
Thickbill has double 'll' in the end mispronounced as 'l'Remember double 'LL' appears in the end of this word which should not be misspelled with single 'L'
Wrong Spelling:  thickbi-l  Correct Spelling:  thickbi-ll 
Find more wrongly spelled words of Thickbill to spell it well.