reflection

American  

[ri-flek-shuhn] / rɪˈflɛk ʃən /

especially British, reflexion

noun

1. the act of reflecting, as in casting back a light or heat, mirroring, or giving back or showing an image; the state of being reflected in this way.

2. an image; representation; counterpart.

3. a fixing of the thoughts on something; careful consideration.

   Synonyms:

   thinking, study, cogitation, deliberation, rumination, meditation

4. a thought occurring in consideration or meditation.

5. an unfavorable remark or observation.

   Synonyms:

   criticism, reproach, aspersion, imputation

6. the casting of some imputation or reproach.

7. Physics, Optics.

   1. the return of light, heat, sound, etc., after striking a surface.

   2. something so reflected, as heat or especially light.

8. Mathematics.

   1. (in a plane) the replacement of each point on one side of a line by the point symmetrically placed on the other side of the line.

   2. (in space) the replacement of each point on one side of a plane by the symmetric point on the other side of the plane.

9. Anatomy. the bending or folding back of a part upon itself.

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reflection British  

/ rɪˈflɛkʃən /

noun

1. the act of reflecting or the state of being reflected

2. something reflected or the image so produced, as by a mirror

3. careful or long consideration or thought

4. implicit or explicit attribution of discredit or blame

5. maths a transformation in which the direction of one axis is reversed or which changes the sign of one of the variables

6. anatomy the bending back of a structure or part upon itself

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reflection Scientific  

/ rĭ-flĕk′shən /

1. The change in direction of a wave, such as a light or sound wave, away from a boundary the wave encounters. Reflected waves remain in their original medium rather than entering the medium they encounter.

2. ◆ According to the law of reflection, the angle of reflection of a reflected wave is equal to its angle of incidence.

3. Compare refraction See more at wave

4. Something, such as sound, light, or heat, that is reflected.

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reflection Cultural  

1. A bouncing of light off a surface. People see themselves in mirrors through reflection. (Compare refraction.)

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Other Word Forms

• interreflection
  noun
• nonreflection
  noun
• overreflection
  noun
• reflectional
  adjective
• reflectionless
  adjective
• self-reflection
  noun
• superreflection
  noun

Etymology

Origin of reflection

First recorded in 1350–1400; Middle English, from Late Latin reflexiōn-, stem of reflexiō “a bending back,” from Latin reflex(us) “bent back” (past participle of reflectere; see reflect) + -iō -ion

Explanation

Your reflection is what you see in the mirror. Other things that bounce back at you are also reflections — light waves, sound waves, even your thoughts. Reflection comes from the Latin reflectere, made up of the prefix re-, "back," and flectere, "to bend." So it's bending something back: your reflection in the mirror is the light waves that bounce your image back at you. When you pause for reflection — serious thinking, that is — your thoughts are bending inward. Reflection can also be a consequence of something: the way your dog mopes around when you're away is a reflection of how much he misses you.

Example Sentences

This mission is to provide a more genuine reflection of Asian American experience — community members speaking directly to fellow community members.

From Los Angeles Times • May 20, 2026

At Harvard University, comedian Conan O’Brien delivered a commencement address rooted in self-deprecation and reflection on career longevity.

From Salon • May 16, 2026

"On reflection we didn't communicate this as effectively as we should have done and have already reverted to our existing laptop policy," it added.

From BBC • May 15, 2026

U.K. debt markets have been hit harder than other developed economies in recent months, a reflection of the economy’s outsize economic vulnerability to the war.

From The Wall Street Journal • May 15, 2026

In the reflection of the metal door, Feathers and Rubio are already standing at attention, jumpsuits straightened and zipped to their necks.

From "The Last Cuentista" by Donna Barba Higuera

Related Words

• consideration
• contemplation
• idea
• impression
• meditation
• observation
• opinion
• rumination
• view