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spectrum

/ˈspɛktrəm/
English Definition
n. range; variety; continuum
中文释义
光谱；范围
Example Sentence

The electromagnetic spectrum includes radio waves, visible light, and X-rays, each with distinct properties.

电磁波谱包括无线电波、可见光和X射线，每种都有不同的特性。

Synonyms
range continuum gamut
💡
Memory Aid / 记忆技巧
spect(look/see)+ rum→ spectrum, range.
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Practice — Definition Match

Which choice best defines “spectrum”?

  1. A Beginner
  2. B A word derived from another or from a root in the same or another language.
  3. C Range; variety; continuum
  4. D Detailed examination
Show answer

C — Range; variety; continuum. “spectrum” means range; variety; continuum.

Practice — Which Word Fits?

Which word means “range; variety; continuum”?

  1. A analysis
  2. B novice
  3. C derivative
  4. D spectrum
Show answer

D — spectrum. “spectrum” means range; variety; continuum.

More Easy-level SAT words

aspire discrete increment obscure provocative solitary sophisticated sound sporadic stagnant static vague

Common questions about “spectrum”

What does “spectrum” mean?

spectrum — range; variety; continuum. In Chinese: 光谱；范围.

How do you pronounce “spectrum”?

spectrum is pronounced /ˈspɛktrəm/.

How is “spectrum” used in a sentence?

The electromagnetic spectrum includes radio waves, visible light, and X-rays, each with distinct properties. (电磁波谱包括无线电波、可见光和X射线，每种都有不同的特性。)

What are synonyms for “spectrum”?

range, continuum, gamut — all close in meaning to spectrum (range; variety; continuum).

Is “spectrum” an SAT vocabulary word?

Yes. spectrum 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.

How can I remember “spectrum”?

spect(look/see)+ rum→ spectrum, range.

Progress / 学习进度
76%
through SAT Easy
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.
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