cuboids Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. three-dimensional shapes with six rectangular faces. Example Sentence Cuboids have 6 face and 12 edges. More Example Sentences The teacher showed us how to draw cuboids. Synonyms rectangular prisms; boxes; solids Antonyms circle Hear It! Say It! Write It! cuboids Switch to cursive Start Share with your friends: