What is Adhesive/ Bond/ Glue？

1, According to ASTM (American Society for Testing Materials) definition; Glue / Adhesive / Bond is sticky material (usually a liquid) that can stick two or more things together. There are so many names refer to it; Adhesive、Bond、Binder、Cement…etc.
2, CNS5345(Chinese National Standards) definition; a substance can make 2 interfaces stick together, we call it as Adhesive.