To validate the new water purification method, the engineers ran a series of controlled experiments comparing contaminant levels before and after treatment.
为了验证新的水净化方法，工程师们进行了一系列对照实验，比较处理前后的污染物水平。
Which choice best defines “validate”?
D — Confirm, make legal. “validate” means confirm, make legal.
Which word means “confirm, make legal”?
D — validate. “validate” means confirm, make legal.
validate — confirm, make legal. In Chinese: 验证，证实.
validate is pronounced /ˈvælɪdeɪt/.
To validate the new water purification method, the engineers ran a series of controlled experiments comparing contaminant levels before and after treatment. (为了验证新的水净化方法，工程师们进行了一系列对照实验，比较处理前后的污染物水平。)
confirm, corroborate, substantiate — all close in meaning to validate (confirm, make legal).
disprove, invalidate — each the opposite of validate (confirm, make legal).
Yes. validate 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.
valid(effective)+ate(verb)