Substitution of one thing for another; interchange.
The reversal of an electric current.
The change to a lesser penalty or punishment by the State
Substitution, as a means of discriminating between phonemes.
The process or habit of journeying to and from work on a regular basis; commuting.
Specifically, the substitution of one kind of payment for another, especially a switch to monetary payment from obligations of labour.
Substitution of one drug for another.
An equal or fair transaction or series of process of exchange transactions; tit for tat.
Something which is offered or asked for in exchange for something else.
Something which is understood as something else; an equivocation.
A usually non-monetary exchange transaction, or series or process of exchange transactions.
Sexual harassment in which a person in a workplace implicitly or explicitly requires sexual favours in exchange for something.