triangles Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. shapes with three straight sides and three angles. Example Sentence She drew three triangles. More Example Sentences Many triangles are used in building designs. Synonyms three-sided shapes; geometric figures Antonyms square; circle Hear It! Say It! Write It! triangles Switch to cursive Start Share with your friends:
