Setting
From ACT Wiki
1. Interest rates - benchmark rates - reference rates.
A setting of a benchmark interest rate means a particular tenor and currency of that benchmark rate.
Also known as a Version of the benchmark rate.
2. Interest rates - floating rates - derivative instruments.
The determination of an interest rate for a predetermined future period, by reference to a benchmark rate.
For example, the interest rate for each tranche of interest payable on floating rate debt is set at the start of the interest calculation period.
Taking another example, a forward start swap has its first interest setting and calculation period starting at a future date.