crevasses Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. deep cracks in a glacier or ice sheet. Example Sentence The mountaineer carefully navigated around the dangerous crevasses on his ascent. More Example Sentences Crevasses can be very dangerous for climbers. Synonyms cracks; fissures; gaps Antonyms plateaus; plains Hear It! Say It! Write It! crevasses Switch to cursive Start Share with your friends: