0 to make a device operate, or to cause a device to play something, such as a CD or DVD, by pressing a switch: --
1 to cover part of the body with clothes, shoes, make-up, or something similar: --
2 to pretend to have a particular feeling or way of behaving that is not real or natural to you: --
3 to produce or provide something, especially for the good of other people or for a special purpose: --
4 If people or animals put weight on, they become heavier: --