📒 a small round piece of metal, plastic, etc. that is sewn onto a piece of clothing and used for fastening two parts together
📒 a small part of a machine that you press to make it work
📒 a small area on a computer screen that you click on to make it do something
📒 a badge, especially one with a message printed on it
📒 intelligent and quick to understand
📒 at exactly the right time or at the exact time mentioned
📒 exactly right
📒 to do exactly the right things to please somebody
📒 to make somebody react in either a positive or a negative way