The difference between Fast and Weak

When used as adjectives, fast means firmly or securely fixed in place, whereas weak means lacking in force (usually strength) or ability.

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

Fast is also noun with the meaning: a train that calls at only some stations it passes between its origin and destination, typically just the principal stations.

Fast is also adverb with the meaning: in a firm or secure manner, securely.

Fast is also verb with the meaning: 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.

check bellow for the other definitions of Fast and Weak

  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. Weak as an adjective:

    Lacking in force (usually strength) or ability.

    Examples:

    "The child was too weak to move the boulder."

    "They easily guessed his weak computer password."

  2. Weak as an adjective:

    Unable to sustain a great weight, pressure, or strain.

    Examples:

    "a weak timber; a weak rope"

  3. Weak as an adjective:

    Unable to withstand temptation, urgency, persuasion, etc.; easily impressed, moved, or overcome; accessible; vulnerable.

    Examples:

    "weak resolutions; weak virtue"

  4. Weak as an adjective:

    Dilute, lacking in taste or potency.

    Examples:

    "We were served stale bread and weak tea."

  5. Weak as an adjective (grammar):

    Displaying a particular kind of inflection, including: Regular in inflection, lacking vowel changes and having a past tense with -d- or -t-. Showing less distinct grammatical endings. Definite in meaning, often used with a definite article or similar word.

  6. Weak as an adjective (chemistry):

    That does not ionize completely into anions and cations in a solution.

    Examples:

    "a weak acid; a weak base"

  7. Weak as an adjective (physics):

    One of the four fundamental forces associated with nuclear decay.

  8. Weak as an adjective (slang):

    Bad or uncool.

    Examples:

    "This place is weak."

  9. Weak as an adjective (mathematics, logic):

    Having a narrow range of logical consequences; narrowly applicable. (Often contrasted with a statement which implies it.)

  10. Weak as an adjective:

    Resulting from, or indicating, lack of judgment, discernment, or firmness; unwise; hence, foolish.

  11. Weak as an adjective:

    Not having power to convince; not supported by force of reason or truth; unsustained.

    Examples:

    "The prosecution advanced a weak case."

  12. Weak as an adjective:

    Lacking in vigour or expression.

    Examples:

    "a weak sentence; a weak style"

  13. Weak as an adjective:

    Not prevalent or effective, or not felt to be prevalent; not potent; feeble.

  14. Weak as an adjective (stock exchange):

    Tending towards lower prices.

    Examples:

    "a weak market; wheat is weak at present"

  15. Weak as an adjective (photography):

    Lacking contrast.

    Examples:

    "a weak negative"

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