International Day of Light Word Search
Play a International Day of Light word search free online. We built the 12-word list around what it marks, and the customs and symbols around it, then scattered it across a 15×15 grid — horizontal, vertical and diagonal. Find them all to clear the board.
Words to find: PHOTON, LASER, OPTICS, ILLUMINATE, RADIANCE, SPECTRUM, CANDLE, BEACON, LUMEN, LUMINOUS, LIGHTING, RAINBOW.
Every word on the list appears exactly once. Words can run forwards or backwards, so scan both directions before you move on.
International Day of Light word list, defined
- PHOTON /fɒtɒn/ · noun
- A particle of light, typically of very short wavelength, either emitted or reflected by a body. In physics, a photon is a quantum of electromagnetic radiation. Related: particle, ray, beam, light.
- LASER /ˈleɪzər/ · noun
- A device that produces an intense beam of coherent light by stimulated emission of radiation, used for cutting, welding, or engraving materials, or for medical or scientific applications. Related: beam, ray, light, emission.
- OPTICS /ɒptɪks/ · noun
- The branch of physics and engineering concerned with the behaviour and properties of light, including its interactions with matter and the instruments used to manipulate it. Related: optical, lens, refraction, reflection.
- ILLUMINATE /ˌɪljʊˈmeɪt/ · verb
- To make something brighter or more understandable by adding light or information. To shed light on something. Related: enlighten, clarify, brighten, shed light on.
- RADIANCE /ˈreɪdiəns/ · noun
- The state of giving off light, heat, or energy; a bright, glowing quality. A quality of being radiant or giving off light. Related: luminosity, brightness, glow, effulgence.
- SPECTRUM /ˈspekt.rəm/ · noun
- A range of colours or a series of frequencies, especially of light or sound. A range of something, such as opinions or abilities. Related: range, series, band, scale.
- CANDLE /kændl/ · noun
- A solid piece of wax with a wick in the middle, used for producing light, typically by burning. Related: torch, lamp, light, wick.
- BEACON /ˈbiːkən/ · noun
- A tower or other structure that emits a light or signal, typically to guide ships or aircraft. A person or thing that serves as a guide or a warning. Related: signal, guide, light, indicator.
- LUMEN /luːmɛn/ · noun
- A unit of measurement for light, equal to one candela. A source of light. Related: lux, candlepower, illuminance, radiance.
- LUMINOUS /luːˈmɪnəs/ · adjective
- Giving off light, radiant; glowing with an inner light; shining brightly. Related: radiant, glowing, shining, luminiferous.
- LIGHTING /ˈlaɪtɪŋ/ · noun
- The provision of artificial light, especially for an interior or exterior space. The use of light in a particular way, especially in a work of art or a scene. Related: illumination, enlightenment, radiance, glow.
- RAINBOW /ˈreɪnbəʊ/ · noun
- A natural phenomenon in which the sun's light is refracted through water droplets in the air, creating a spectrum of colors. Related: spectrum, prism, arc, band.
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