Geologists assert that the canyon's layered rock walls reveal millions of years of gradual erosion and deposition.
地质学家断言,峡谷层叠的岩壁揭示了数百万年来缓慢的侵蚀和沉积过程。
A commentator asserts that the phone's price fell with every successive release.
From a Command of Evidence: Quantitative question · Information and Ideas
Which choice best defines “assert”?
C — Declare; claim; maintain. “assert” means declare; claim; maintain.
Which word means “declare; claim; maintain”?
C — assert. “assert” means declare; claim; maintain.
assert — declare; claim; maintain. In Chinese: 断言;坚持.
assert is pronounced /əˈsɜːrt/.
Geologists assert that the canyon's layered rock walls reveal millions of years of gradual erosion and deposition. (地质学家断言,峡谷层叠的岩壁揭示了数百万年来缓慢的侵蚀和沉积过程。)
declare, maintain, contend — all close in meaning to assert (declare; claim; maintain).
deny, disavow — each the opposite of assert (declare; claim; maintain).
Yes. assert 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.
as-(strengthen)+ sert(connect, declare) → assert, claim.