A button is a typically thin, small disc of
hard substance, attached to a piece of
cloth by stitches
sewn through holes in its centre.
The most common use
of buttons is to secure the openings of garments, by sliding
the button through a slit in the piece of cloth to which the
first is to be held. The slit is only sufficiently wide to
allow the button to be fully pushed through while still
remaining stitched to the first piece of cloth.
Buttons are also sometimes used for decorative effect,
with or without a practical function.