demilune Get Printable Handwriting (dem-i-lune) 3 syllables Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a crescent shape or form. Example Sentence The antique shop had a beautiful demilune table that caught my eye. More Example Sentences She drew a demilune in her notebook. Synonyms crescent; semicircle; arc Antonyms full circle; square Hear It! Say It! Write It! demilune Switch to cursive Start Share with your friends: