--> Thimbleberry has double "rr" is mispronounced as "r"
Remember double 'RR' in between the strings thimblebe & y which should not be misspelled with single 'R'
Wrong Spelling:  thimblebe-r-y 
Correct Spelling:  thimblebe-rr-y 
Find more wrongly spelled words of Thimbleberry to spell it well.