hyacinths Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. a type of flowering plant with colorful blooms. Example Sentence If the bulbs are planted now the hyacinths will bloom in spring. More Example Sentences Hyacinths bloom in many bright colors. Synonyms flowers; blooms; plants Antonyms animal Hear It! Say It! Write It! hyacinths Switch to cursive Start Share with your friends: