Anything that is swapped out for another; an exchange.
A pre-prepared food item used in place of an unfinished food item in order to cut down the overall preparation time during filming.
To exchange (something) for (something else). (usually followed by with or for)
To transfer (memory contents) into a swap file.
To exchange (something or someone) for an unused (or less-used) equivalent.
The transference of an investment from one fund to another.
Back-and-forth movement of an animal's tail, etc.
The movement of a locomotive from one track to another.
Change from one product/service provider to another.
Corporal punishment by use of a switch (twig or twigs).