SAT Basic
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collision

/kəˈlɪʒən/
English Definition
n. crash, coming together
中文释义
碰撞
Example Sentence

The collision of two tectonic plates gradually uplifted the mountain range over millions of years.

两个构造板块的碰撞在数百万年间逐渐抬升了这条山脉。

Synonyms
impact crash smash
Antonyms
separation avoidance
Seen in practice — from the Digital SAT question bank

A city's traffic engineers found that intersections with flashing yellow left-turn signals had fewer left-turn collisions than similar intersections with standard solid green signals permitting turns, even though both types of intersections had comparable overall traffic volume.

From a Inferences question · Information and Ideas

💡
Memory Aid / 记忆技巧
coll(common)+sion(collision)
Know this word? Mark it mastered, or move on.
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Practice — Definition Match

Which choice best defines “collision”?

  1. A The image seen in a mirror or shiny surface
  2. B A sudden start of something unwelcome, like a disease
  3. C Crash, coming together
  4. D A sentence worded to elicit information
Show answer

C — Crash, coming together. “collision” means crash, coming together.

Practice — Which Word Fits?

Which word means “crash, coming together”?

  1. A question
  2. B reflection
  3. C outbreak
  4. D collision
Show answer

D — collision. “collision” means crash, coming together.

Common questions about “collision”

What does “collision” mean?

collision — crash, coming together. In Chinese: 碰撞.

How do you pronounce “collision”?

collision is pronounced /kəˈlɪʒən/.

How is “collision” used in a sentence?

The collision of two tectonic plates gradually uplifted the mountain range over millions of years. (两个构造板块的碰撞在数百万年间逐渐抬升了这条山脉。)

What are synonyms for “collision”?

impact, crash, smash — all close in meaning to collision (crash, coming together).

What is the opposite of “collision”?

separation, avoidance — each the opposite of collision (crash, coming together).

Is “collision” an SAT vocabulary word?

Yes. collision 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.

How can I remember “collision”?

coll(common)+sion(collision)

Progress / 学习进度
11%
through SAT Basic
This level: 0 mastered (0% of the level)
The Digital SAT tests vocabulary through Words in Context questions, never as a standalone definition. Learn the word, then use it against a real passage.