The duration of a solar eclipse can vary from a few minutes to over seven minutes, depending on the alignment of the sun and moon.
日食的持续时间可能从几分钟到七分钟以上不等，取决于太阳和月亮的对齐情况。
Honeybees communicate the location of food sources to their hive-mates through a series of movements known as the waggle dance, in which the angle and duration of the dance correspond to the direction and distance of the food relative to the sun.
From a Central Ideas and Details question · Information and Ideas
In a laboratory experiment, plants grown under intermittent light exposure—several short light periods separated by darkness—produced more biomass than genetically identical plants grown under a single continuous light period of the same total duration.
From a Inferences question · Information and Ideas
A sleep researcher hypothesizes that keeping bedroom temperature below 68 degrees Fahrenheit improves deep sleep duration more than using a white-noise machine does.
From a Command of Evidence: Textual question · Information and Ideas
Which choice best defines “duration”?
A — Length of time. “duration” means length of time.
Which word means “length of time”?
A — duration. “duration” means length of time.
duration — length of time. In Chinese: 持续时间.
duration is pronounced /djʊˈreɪʃn/.
The duration of a solar eclipse can vary from a few minutes to over seven minutes, depending on the alignment of the sun and moon. (日食的持续时间可能从几分钟到七分钟以上不等，取决于太阳和月亮的对齐情况。)
length, period, span — all close in meaning to duration (length of time).
Yes. duration is on the SAT Prep Easy list — mid-frequency academic words that do get tested. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.
dur(continue)+ation(noun)