When the lead researcher fell ill, a graduate student served as a substitute for the remainder of the fieldwork season.
当首席研究员生病时，一名研究生在余下的野外工作季节中充当了替代者。
A food scientist claims that a newly developed plant-based meat substitute is perceived by consumers as tasting more similar to real meat than earlier plant-based products did.
From a Command of Evidence: Textual question · Information and Ideas
A food scientist claims that a newly developed plant-based egg substitute is perceived by consumers as scrambling and tasting more similar to real eggs than earlier plant-based substitutes did.
From a Command of Evidence: Textual question · Information and Ideas
Which choice best defines “substitute”?
B — Replacement, replace. “substitute” means replacement, replace.
Which word means “replacement, replace”?
C — substitute. “substitute” means replacement, replace.
substitute — replacement, replace. In Chinese: 替代品，替补.
substitute is pronounced /ˈsʌbstɪtuːt/.
When the lead researcher fell ill, a graduate student served as a substitute for the remainder of the fieldwork season. (当首席研究员生病时，一名研究生在余下的野外工作季节中充当了替代者。)
replacement, stand-in, proxy — all close in meaning to substitute (replacement, replace).
original, permanent — each the opposite of substitute (replacement, replace).
Yes. substitute 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.
sub(down)+stitute(stand)