SAT Basic
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quantity

/ˈkwɑːntəti/
English Definition
n. amount, how much
中文释义
数量
Example Sentence

The quantity of water stored in a glacier can be estimated by measuring its surface area and depth.

冰川中储存的水量可以通过测量其表面积和深度来估算。

Synonyms
amount volume extent
Antonyms
quality
Seen in practice — from the Digital SAT question bank

Ants communicate largely through chemical trails known as pheromones; when a worker ant finds a food source, it lays down a pheromone trail on its way back to the colony, and the strength of that trail indicates the quality and quantity of the food found.

From a Central Ideas and Details question · Information and Ideas

- The concept of infinity was treated with suspicion by many ancient Greek mathematicians, who preferred to work only with finite quantities.

From a Rhetorical Synthesis question · Expression of Ideas

A survey of remote employees found that those whose teams used a shared virtual whiteboard during brainstorming sessions reported similar levels of reported idea quantity to teams that did not use one, but reported significantly higher satisfaction with the brainstorming process itself.

From a Inferences question · Information and Ideas

💡
Memory Aid / 记忆技巧
quant(quant)+ity(noun)
Know this word? Mark it mastered, or move on.
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Practice — Definition Match

Which choice best defines “quantity”?

  1. A Bad luck; an unfortunate condition or event
  2. B Desire for success
  3. C Amount, how much
  4. D The image seen in a mirror or shiny surface
Show answer

C — Amount, how much. “quantity” means amount, how much.

Practice — Which Word Fits?

Which word means “amount, how much”?

  1. A quantity
  2. B ambition
  3. C reflection
  4. D misfortune
Show answer

A — quantity. “quantity” means amount, how much.

Common questions about “quantity”

What does “quantity” mean?

quantity — amount, how much. In Chinese: 数量.

How do you pronounce “quantity”?

quantity is pronounced /ˈkwɑːntəti/.

How is “quantity” used in a sentence?

The quantity of water stored in a glacier can be estimated by measuring its surface area and depth. (冰川中储存的水量可以通过测量其表面积和深度来估算。)

What are synonyms for “quantity”?

amount, volume, extent — all close in meaning to quantity (amount, how much).

What is the opposite of “quantity”?

quality — each the opposite of quantity (amount, how much).

Is “quantity” an SAT vocabulary word?

Yes. quantity 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 “quantity”?

quant(quant)+ity(noun)

Progress / 学习进度
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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.