A substitute or replacement.
The act of substituting or the state of being substituted.
The expansion of the lexicon of a language by native means in correspondence to a foreign term.
The replacement of an atom, or group of atoms, in a compound, with another.
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.