'painful'はこちらの項目にも見つかりました。
英語の見出し語に対する説明:
achy
 - agonizing
 - bone-crushing
 - dolorous
 - hurt
 - irritable bowel syndrome
 - pinch
 - sore
 - sore throat
 - stab
 - sting
 - stinging
 - stone bruise
 - strep throat
 - throe
                        
painfulUK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈpeɪnfəl/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/ˈpeɪnfəl/ ,USA pronunciation: respelling(pān′fəl) 
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