rue Get Printable Handwriting (Rue) 1 syllables Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to feel regret or sorrow for something. Example Sentence He is going to rue this day. More Example Sentences Many rue the day they ignored advice. Synonyms regret; mourn; lament Antonyms celebrate; rejoice; delight Hear It! Say It! Write It! rue Switch to cursive Start Share with your friends: