noun

• (physics, uncountable) Electromagnetic radiation in the wavelength range visible to the human eye (about 400–750 nanometers); visible light.
  "As you can see, this spacious dining-room gets a lot of light in the mornings."
• (physics, uncountable) Electromagnetic radiation in the wavelength range visible to the human eye (about 400–750 nanometers); visible light.
  "black light"
• (countable) A source of illumination.
  "Put that light out!"
• (countable) A source of illumination.
  "We turned off all the lights and went to sleep."

verb

• (transitive) To start (a fire).
  "We lit the fire to get some heat."
• (transitive) To set fire to; to set burning.
  "She lit her last match."
• (transitive) To illuminate; to provide light for when it is dark.
  "I used my torch to light the way home through the woods in the night."
• (intransitive) To become ignited; to take fire.
  "This soggy match will not light."

adj

• (of coffee) Served with extra milk or cream.
  "I like my coffee light."

adj

• Lacking that which burdens or makes heavy.
  "light infantry; a troop of light horse"
• Lacking that which burdens or makes heavy.
  "if a ship is light or partially loaded ; the light draft of a vessel, or its light displacement"
• Lacking that which burdens or makes heavy.
  "the light locomotives ; a locomotive may be moved light"
• (cooking) Not heavy or soggy; spongy; well raised.
  "a light bread ; sponge cake is a light cake"