SAT Basic
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dense

/dens/
English Definition
adj. packed closely
中文释义
密集的
Example Sentence

The dense forest canopy blocked most sunlight, creating a dim understory where only shade-tolerant plants thrived.

茂密的森林树冠阻挡了大部分阳光,形成了昏暗的林下植被层,只有耐阴植物才能繁茂生长。

Synonyms
compact thick crowded
Antonyms
sparse thin
Seen in practice — from the Digital SAT question bank

Certain species of parrot possess an unusually dense concentration of neurons in a brain region associated with problem-solving, despite having a brain far smaller in overall size than that of many mammals.

From a Central Ideas and Details question · Information and Ideas

Bristlecone pines, found in the high-altitude mountains of the western United States, grow extremely slowly in harsh, nutrient-poor conditions; remarkably, this slow growth, combined with wood so dense it resists insects and fungal decay, allows some individual trees to survive for over 4,000 years.

From a Central Ideas and Details question · Information and Ideas

- It started in a bakery on Pudding Lane and spread rapidly through the city's densely packed wooden buildings.

From a Rhetorical Synthesis question · Expression of Ideas

💡
Memory Aid / 记忆技巧
dens(compact)
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Practice — Definition Match

Which choice best defines “dense”?

  1. A Packed closely
  2. B Not achieving the desired outcome
  3. C Involving or relating to serious academic study
  4. D Relating to the outside of something
Show answer

A — Packed closely. “dense” means packed closely.

Practice — Which Word Fits?

Which word means “packed closely”?

  1. A exterior
  2. B unsuccessful
  3. C scholarly
  4. D dense
Show answer

D — dense. “dense” means packed closely.

Common questions about “dense”

What does “dense” mean?

dense — packed closely. In Chinese: 密集的.

How do you pronounce “dense”?

dense is pronounced /dens/.

How is “dense” used in a sentence?

The dense forest canopy blocked most sunlight, creating a dim understory where only shade-tolerant plants thrived. (茂密的森林树冠阻挡了大部分阳光,形成了昏暗的林下植被层,只有耐阴植物才能繁茂生长。)

What are synonyms for “dense”?

compact, thick, crowded — all close in meaning to dense (packed closely).

What is the opposite of “dense”?

sparse, thin — each the opposite of dense (packed closely).

Is “dense” an SAT vocabulary word?

Yes. dense 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 “dense”?

dens(compact)

Progress / 学习进度
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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.