fibres Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. thin threads that make up cloth or material. Example Sentence The ropes where made from oakum fibres. More Example Sentences Different fibres can be used for clothing. Synonyms threads; strands; filaments Antonyms bone Hear It! Say It! Write It! fibres Switch to cursive Start Share with your friends: