When you empty something out with a liquid, you flush it. You might also be flush with cash, meaning you have a lot of it. Just don't flush that cash down the toilet!

Your face can flush, and the sky can flush at sunset when it glows with shades of pink. You can also use flush as an adjective to mean "lined up" or "level," like when you hang a medicine cabinet in your bathroom, making sure it's flush against the wall. Yet another meaning of a flush is a peak or boom — a professional poker player might describe her period of winning game after game as a flush.

Definitions of flush
  1. verb
    rinse, clean, or empty with a liquid
    flush the wound with antibiotics”
    synonyms: purge, scour
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    type of:
    rinse, rinse off
    wash off soap or remaining dirt
  2. verb
    cause to flow or flood with or as if with water
    flush the meadows”
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    perfuse, suffuse
    cause to spread or flush or flood through, over, or across
    force a fluid through (a body part or tissue)
    type of:
    irrigate, water
    supply with water, as with channels or ditches or streams
  3. verb
    irrigate with water from a sluice
    synonyms: sluice
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    type of:
    douse, dowse, drench, soak, sop, souse
    cover with liquid; pour liquid onto
  4. verb
    flow freely
    “The garbage flushed down the river”
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    flush down, wash down
    flow freely
    type of:
    course, feed, flow, run
    move along, of liquids
  5. noun
    the swift release of a store of affective force
    synonyms: bang, boot, charge, kick, rush, thrill
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    type of:
    excitement, exhilaration
    the feeling of lively and cheerful joy
  6. noun
    a sudden rapid flow (as of water)
    “he heard the flush of a toilet”
    synonyms: gush, outpouring
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    a swelling rush of anything
    type of:
    flow, flowing
    the motion characteristic of fluids (liquids or gases)
  7. verb
    force to come into the open, as from a place of concealment
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    type of:
    drive out, force out, rouse, rout out
    force or drive out
  8. verb
    glow or cause to glow with warm color or light
    “the sky flushed with rosy splendor”
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    type of:
    emit a steady even light without flames
  9. verb
    turn red, as if in embarrassment or shame
    synonyms: blush, crimson, redden
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    type of:
    color, colour, discolor, discolour
    change color, often in an undesired manner
  10. noun
    sudden brief sensation of heat (associated with menopause and some mental disorders)
    synonyms: hot flash
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    type of:
    (medicine) any sensation or change in bodily function that is experienced by a patient and is associated with a particular disease
  11. noun
    sudden reddening of the face (as from embarrassment or guilt or shame or modesty)
    synonyms: blush
  12. noun
    a rosy color (especially in the cheeks) taken as a sign of good health
    synonyms: bloom, blush, rosiness
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    type of:
    good health, healthiness
    the state of being vigorous and free from bodily or mental disease
  13. adjective
    of a surface exactly even with an adjoining one, forming the same plane
    “a door flush with the wall”
    “the bottom of the window is flush with the floor”
    being level or straight or regular and without variation as e.g. in shape or texture; or being in the same plane or at the same height as something else (i.e. even with)
  14. verb
    make level or straight
    synonyms: even, even out, level
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    show 4 types...
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    level to the right gradient
    strickle, strike
    smooth with a strickle
    level off with a strickle in a measuring container
    build up to a level by depositing sediment
    type of:
    change surface
    undergo or cause to undergo a change in the surface
  15. adverb
    in the same plane
    “set it flush with the top of the table”
  16. adjective
    having an abundant supply of money or possessions of value
    “a speculator flush with cash”
    synonyms: affluent, loaded, moneyed, wealthy
    possessing material wealth
  17. noun
    the period of greatest prosperity or productivity
    synonyms: bloom, blossom, efflorescence, flower, heyday, peak, prime
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    golden age
    a time period when some activity or skill was at its peak
    type of:
    period, period of time, time period
    an amount of time
  18. noun
    a poker hand with all 5 cards in the same suit
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    type of:
    poker hand
    the 5 cards held in a game of poker
  19. adverb
    squarely or solidly
    “hit him flush in the face”
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