duration

Etymology

From Middle English duracioun, from late Old French duracion, from Medieval Latin dūrātiō.

noun

1. An amount of time or a particular time interval.
   The duration of the flight will be about 2 hours 45 minutes.
   She was moaning for the entire duration of the advert break.
   To make matters worse, we pass through a torrential rainstorm, which makes window-gazing almost impossible, leaving me glad that the trip is less than 30 minutes duration. November 16 2022, Paul Bigland, “From rural branches to high-speed arteries”, in RAIL, number 970, page 55
2. (in the singular, not followed by "of") The time taken for the current situation to end, especially the current war
   Rationing will last at least for the duration.
3. (finance) A measure of the sensitivity of the price of a financial asset to changes in interest rates, computed for a simple bond as a weighted average of the maturities of the interest and principal payments associated with it.