Vocabulary›C1›Earth’s natural phenomena›Wonders of the night sky›with the naked eye
phraseC1

with the naked eye

/wɪð ðə ˌneɪkɪd ˈaɪ/
Lesson: Wonders of the night sky

You say this when something can be seen using only normal vision, without a telescope, binoculars, or another aid.

It is often used to distinguish what someone can see directly from what requires optical equipment, and can also describe things too small to see without a microscope.

Illustration for with the naked eye
EXAMPLES
  • The Andromeda Galaxy is faint, but you can see it with the naked eye on a clear night.
  • Several planets are visible with the naked eye this month.
  • During totality, the Sun’s corona was visible with the naked eye.
SYNONYMS
without optical aidto the unaided eyewith unaided vision
ANTONYMS
through a telescopewith binocularsunder magnification
GRAMMAR
Fixed adverbial phrase · often follows see, observe, or visible.
COMMON COLLOCATIONS
see with the naked eyevisible with the naked eyeobserve with the naked eyenot visible with the naked eye
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