The difference between Fast and Light

When used as nouns, fast means a train that calls at only some stations it passes between its origin and destination, typically just the principal stations, whereas light means visible electromagnetic radiation. the human eye can typically detect radiation (light) in the wavelength range of about 400 to 750 nanometers. nearby shorter and longer wavelength ranges, although not visible, are commonly called ultraviolet and infrared light.

When used as adverbs, fast means in a firm or secure manner, securely, whereas light means carrying little.

When used as verbs, fast means to restrict one's personal consumption, generally of food, but sometimes other things, in various manners (totally, temporally, by avoiding particular items), often for religious or medical reasons, whereas light means to start (a fire).

When used as adjectives, fast means firmly or securely fixed in place, whereas light means having light.

Fast is also interjection with the meaning: short for "stand fast", a warning not to pass between the arrow and the target.

check bellow for the other definitions of Fast and Light

  1. Fast as an adjective (dated):

    Firmly or securely fixed in place; stable.

    Examples:

    "That rope is dangerously loose. Make it fast!"

  2. Fast as an adjective:

    Firm against attack; fortified by nature or art; impregnable; strong.

  3. Fast as an adjective (of people):

    Steadfast, with unwavering feeling. (Now mostly in set phrases like .)

  4. Fast as an adjective:

    Moving with great speed, or capable of doing so; swift, rapid.

    Examples:

    "I am going to buy a fast car."

  5. Fast as an adjective:

    Causing unusual rapidity of play or action.

    Examples:

    "a fast racket, or tennis court; a fast track; a fast billiard table''; ''a fast dance floor"

  6. Fast as an adjective (computing, of a piece of hardware):

    Able to transfer data in a short period of time.

  7. Fast as an adjective:

    Deep or sound (of sleep); fast asleep (of people).

  8. Fast as an adjective (of dyes or colours):

    Not running or fading when subjected to detrimental conditions such as wetness or intense light; permanent.

    Examples:

    "All the washing has come out pink. That red tee-shirt was not fast."

  9. Fast as an adjective (obsolete):

    Tenacious; retentive.

  10. Fast as an adjective (dated):

    Having an extravagant lifestyle or immoral habits.

    Examples:

    "a fast woman"

  11. Fast as an adjective:

    Ahead of the correct time or schedule.

    Examples:

    "There must be something wrong with the hall clock. It is always fast."

  12. Fast as an adjective (of photographic film):

    More sensitive to light than average.

  1. Fast as an adverb:

    In a firm or secure manner, securely; in such a way as not to be moved; safe, sound .

    Examples:

    "Hold this rope as fast as you can."

  2. Fast as an adverb (of sleeping):

    Deeply or soundly .

    Examples:

    "He is fast asleep."

  3. Fast as an adverb:

    Immediately following in place or time; close, very near .

    Examples:

    "The horsemen came fast on our heels."

  4. Fast as an adverb:

    Quickly, with great speed; within a short time .

    Examples:

    "Do it as fast as you can."

  5. Fast as an adverb:

    Ahead of the correct time or schedule.

    Examples:

    "I think my watch is running fast."

  1. Fast as a noun (British, rail transport):

    A train that calls at only some stations it passes between its origin and destination, typically just the principal stations

  1. Fast as a verb (intransitive):

    To restrict one's personal consumption, generally of food, but sometimes other things, in various manners (totally, temporally, by avoiding particular items), often for religious or medical reasons.

    Examples:

    "Muslims fast during Ramadan and Catholics during Lent."

  1. Fast as a noun:

    The act or practice of abstaining from food or of eating very little food.

  2. Fast as a noun:

    The period of time during which one abstains from or eats very little food.

    Examples:

    "[[Lent]] and [[Ramadan]] are fasts of two [[religion]]s."

  1. Light as a noun (physics, uncountable):

    Visible electromagnetic radiation. The human eye can typically detect radiation (light) in the wavelength range of about 400 to 750 nanometers. Nearby shorter and longer wavelength ranges, although not visible, are commonly called ultraviolet and infrared light.

    Examples:

    "As you can see, this spacious dining-room gets a lot of light in the mornings."

  2. Light as a noun:

    A source of illumination.

    Examples:

    "Put that light out!"

  3. Light as a noun:

    Spiritual or mental illumination; enlightenment, useful information.

    Examples:

    "Can you throw any light on this problem?"

  4. Light as a noun (in the plural, now, rare):

    Facts; pieces of information; ideas, concepts.

  5. Light as a noun:

    A notable person within a specific field or discipline.

    Examples:

    "Picasso was one of the leading lights of the cubist movement."

  6. Light as a noun (painting):

    The manner in which the light strikes a picture; that part of a picture which represents those objects upon which the light is supposed to fall; the more illuminated part of a landscape or other scene; opposed to shade.

  7. Light as a noun:

    A point of view, or aspect from which a concept, person or thing is regarded.

    Examples:

    "I'm really seeing you in a different light today."

    "Magoon's governorship in Cuba was viewed in a negative light by many Cuban historians for years thereafter."

  8. Light as a noun:

    A flame or something used to create fire.

    Examples:

    "Hey, buddy, you got a light?"

  9. Light as a noun:

    A firework made by filling a case with a substance which burns brilliantly with a white or coloured flame.

    Examples:

    "a Bengal light"

  10. Light as a noun:

    A window, or space for a window in architecture.

    Examples:

    "This facade has eight south-facing lights."

  11. Light as a noun:

    The series of squares reserved for the answer to a crossword clue.

    Examples:

    "The average length of a light on a 15×15 grid is 7 or 8."

  12. Light as a noun (informal):

    A cross-light in a double acrostic or triple acrostic.

  13. Light as a noun:

    Open view; a visible state or condition; public observation; publicity.

  14. Light as a noun:

    The power of perception by vision.

  15. Light as a noun:

    The brightness of the eye or eyes.

  16. Light as a noun:

    A traffic light, or, by extension, an intersection controlled by one or more that will face a traveler who is receiving instructions.

    Examples:

    "To get to our house, turn right at the third light."

  1. Light as a verb (transitive):

    To start (a fire).

    Examples:

    "We lit the fire to get some heat."

  2. Light as a verb (transitive):

    To set fire to; to set burning; to kindle.

    Examples:

    "She lit her last match."

  3. Light as a verb (transitive):

    To illuminate.

    Examples:

    "I used my torch to light the way home through the woods in the night."

  4. Light as a verb (intransitive):

    To become ignited; to take fire.

    Examples:

    "This soggy match will not light."

  5. Light as a verb:

    To attend or conduct with a light; to show the way to by means of a light.

  1. Light as an adjective:

    Having light.

    Examples:

    "The room is light when the Sun shines through the window."

  2. Light as an adjective:

    Pale in colour.

    Examples:

    "She had light skin."

  3. Light as an adjective (of coffee):

    Served with extra milk or cream.

    Examples:

    "I like my coffee light."

  1. Light as an adjective:

    Of low weight; not heavy.

    Examples:

    "My bag was much lighter once I had dropped off the books."

  2. Light as an adjective:

    Lightly-built; designed for speed or small loads.

    Examples:

    "We took a light aircraft down to the city."

  3. Light as an adjective:

    Gentle; having little force or momentum.

    Examples:

    "This artist clearly had a light, flowing touch."

  4. Light as an adjective:

    Easy to endure or perform.

    Examples:

    "light duties around the house"

  5. Light as an adjective:

    Low in fat, calories, alcohol, salt, etc.

    Examples:

    "This light beer still gets you drunk if you have enough of it."

  6. Light as an adjective:

    Unimportant, trivial, having little value or significance.

    Examples:

    "I made some light comment, and we moved on."

  7. Light as an adjective (rail transport, of a locomotive, usually with "run"):

    travelling with no carriages, wagons attached

  8. Light as an adjective (obsolete):

    Unchaste, wanton.

  9. Light as an adjective:

    Not heavily armed; armed with light weapons.

    Examples:

    "light troops; a troop of light horse"

  10. Light as an adjective:

    Not encumbered; unembarrassed; clear of impediments; hence, active; nimble; swift.

  11. Light as an adjective (dated):

    Easily influenced by trifling considerations; unsteady; unsettled; volatile.

    Examples:

    "a light, vain person; a light mind"

  12. Light as an adjective:

    Indulging in, or inclined to, levity; lacking dignity or solemnity; frivolous; airy.

    Examples:

    "Ogden Nash was a writer of light verse."

  13. Light as an adjective:

    Not quite sound or normal; somewhat impaired or deranged; dizzy; giddy.

  14. Light as an adjective:

    Not of the legal, standard, or usual weight; clipped; diminished.

    Examples:

    "light coin"

  15. Light as an adjective:

    Easily interrupted by stimulation.

    Examples:

    "light sleep; light anesthesia"

  1. Light as an adverb:

    Carrying little.

    Examples:

    "I prefer to travel light."

  1. Light as a noun (curling):

    A stone that is not thrown hard enough.

  1. Light as a verb (nautical):

    To unload a ship, or to jettison material to make it lighter

  2. Light as a verb:

    To lighten; to ease of a burden; to take off.

  1. Light as a verb:

    To find by chance.

    Examples:

    "I lit upon a rare book in a second-hand bookseller's."

  2. Light as a verb:

    To stop upon ; to notice

  3. Light as a verb (archaic):

    To alight; to land or come down.

    Examples:

    "She fell out of the window but luckily lit on her feet."

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