20-letter words containing se
- upper yosemite falls — a section of Yosemite Falls in central California, in the Yosemite National Park that is 436 m (1430 ft) high
- upset the apple cart — to disrupt a procedure, spoil someone's plans, etc.
- wait-and-see tactics — methods of achieving what you want in a particular political situation that involve biding your time for events to run their course
- warehouse facilities — places for storing goods
- westminster assembly — a convocation that met at Westminster, London, 1643–49, and formulated the articles of faith (Westminster Confession of Faith) that are accepted as authoritative by most Presbyterian churches.
- woolsorters' disease — pulmonary anthrax in humans, caused by inhaling the spores of Bacillus anthracis, which may contaminate wool fleece.
- zero insertion force — (hardware) (ZIF) A kind of socket for integrated circuits. A ZIF socket can be opened and closed by means of a lever or screw. When open, there the chip may be placed in the socket without any pressure at all, the socket is then closed, causing its contacts to grip the pins of the chip. Such sockets are used where chips must be inserted and removed frequently, such as in test equipment. They are more expensive and usually take up more space than conventional IC sockets.