The ozone layer acts as a protector, absorbing most of the Sun's harmful ultraviolet radiation.
臭氧层充当保护者，吸收了太阳大部分有害的紫外线辐射。
Which choice best defines “protector”?
D — A person or thing that protects. “protector” means a person or thing that protects.
Which word means “a person or thing that protects”?
D — protector. “protector” means a person or thing that protects.
protector — a person or thing that protects. In Chinese: 保护者.
protector is pronounced /prəˈtɛktə/.
The ozone layer acts as a protector, absorbing most of the Sun's harmful ultraviolet radiation. (臭氧层充当保护者，吸收了太阳大部分有害的紫外线辐射。)
guardian, defender, shield — all close in meaning to protector (a person or thing that protects).
threat, endangerer — each the opposite of protector (a person or thing that protects).
Yes. protector is on the SAT Prep Basic list — the everyday academic words the SAT assumes you already have. 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.