The sound of the waterfall could be heard from a mile away, masking the rustle of leaves in the forest.
瀑布的声音在一英里外就能听到，掩盖了森林里树叶的沙沙声。
A marine biologist hypothesizes that underwater construction noise from offshore wind farms disrupts the mating calls of a species of fish that relies on sound to attract mates.
From a Command of Evidence: Textual question · Information and Ideas
Scientists studying this mechanism hope it could eventually inspire new methods of generating powerful underwater sound pulses for industrial or medical uses.
From a Central Ideas and Details question · Information and Ideas
Pistol shrimp produce one of the loudest sounds in the ocean by snapping a specialized claw shut so quickly that it creates a collapsing air bubble; the resulting shockwave can stun or even kill small prey caught nearby.
From a Central Ideas and Details question · Information and Ideas
Which choice best defines “sound”?
C — Vibrations that travel through the air and can be heard. “sound” means vibrations that travel through the air and can be heard.
Which word means “vibrations that travel through the air and can be heard”?
B — sound. “sound” means vibrations that travel through the air and can be heard.
sound — vibrations that travel through the air and can be heard. In Chinese: 声音.
sound is pronounced /saʊnd/.
The sound of the waterfall could be heard from a mile away, masking the rustle of leaves in the forest. (瀑布的声音在一英里外就能听到，掩盖了森林里树叶的沙沙声。)
noise, tone, acoustics — all close in meaning to sound (vibrations that travel through the air and can be heard).
silence — each the opposite of sound (vibrations that travel through the air and can be heard).
Yes. sound 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.