blue tack Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a versatile reusable puttylike pressuresensitive adhesive produced by Bostik commonly used to attach papers to walls or other surfaces Example Sentence I used blue tack to stick pictures on the wall. Synonyms blu-tack; adhesive; reusable adhesive Antonyms unsticky Hear It! Say It! Write It! blue tack Switch to cursive Start Share with your friends: