To transfer (something) to someone else, especially as a replacement for oneself (such as an official office or duty); to transfer something that was originally given to oneself from someone else.
To exchange (something or someone) for an unused (or less-used) equivalent.
To exchange (something) for (something else). (usually followed by with or for)
To transfer (memory contents) into a swap file.
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.