C1noun2K

Ray

UK /["/reɪ/","/reɪz/"]/US /["/reɪ/","/reɪz/"]/

Definition

a narrow line of light, heat or other energy

In simple words: A thin line of light or energy coming from a source.

Examples

  • A ray of sunlight streamed through the window and warmed the room.
  • The X-ray revealed a small fracture in the bone.
  • The scientist studied the properties of the light ray in space.
  • The stingray glided gracefully through the shallow water.
  • Ray is a common male first name in many English-speaking countries.
  • The ultrasound machine uses sound rays to create images of the body's interior.
  • He wore a Ray-Ban sunglasses that blocked the sun's harmful rays.
  • In physics, a light ray is an idealized narrow beam of photons.

Usage notes

Often used in scientific contexts (like light rays) or when discussing positive aspects (e.g., rays of hope). In casual speech, it can refer to a person's cheerful energy. Avoid in very formal writing.

Grammar pattern

standalone noun

Memory hint

Think of a sun ray shining down — bright and warm!

Collocations

  • powerful
  • blinding
  • bright
  • emit
  • give off
  • send out
  • filter through something
  • pass through something
  • penetrate something
  • in the rays of
  • a ray of light
  • a ray of sunlight
  • a ray of sunshine

Synonyms

  • glimmer

Antonyms

  • shadow
  • darkness

Common mistakes

  • Confused with 'rays' when speaking about multiple instances.
  • Misused in contexts where 'beam' is more appropriate.
  • Spelling errors, like 'rayy' or 'reigh'.