noun
    
    plural -tons
    
    [count] a small, usually round piece of plastic, glass, metal, etc., that is sewn to a piece of clothing and is pushed through a loop or hole to fasten one part of the clothing to another part
    
    
    
    
    
    
    
    
    
    see color picture
    
    US :a small, usually round sign that has a picture or words on the front and a pin on the back
    
    People pin buttons to their clothing to show support for a person or idea.
    
    
    
    
    
    a small part of a machine that you push to make the machine work
    
    
    
    
    
    
    
    a small area on a computer screen that you click on to make the computer software do something
    
    
    
    (as) cute as a button
    
    informal :very cute
    
    
    
    on the button
    
    US informal
    
    exactly at the specified time
    
    
    
    perfectly accurate
    
    
    
    push the right buttons
    
    informal :to do the things that are needed to produce a desired effect or result
    
    
    
    push your buttons
    
    informal :to do or say something just to make you angry or upset
    
    
    
    
    
    verb
    
    -tons; -toned; -toning
    
    [+ obj] :to attach (a button) by passing it through a hole
    
    
    
    [+ obj] :to close or fasten (something) with buttons
    
    
    
    
    
    [no obj] :to have buttons for fastening
    
    
    
    button it
    
    informal + impolite - used to tell someone to stop talking
    
    
    
    button your lip/lips
    
    or keep your lip/lips buttoned
    
    US informal :to not talk about something