flush vs slack

flush

noun
  • A sudden flowing; a rush which fills or overflows, as of water for cleansing purposes. 

  • The process of clearing the contents of a buffer or cache. 

  • A hand consisting of all cards with the same suit. 

  • A suffusion of the face with blood, as from fear, shame, modesty, or intensity of feeling of any kind; a blush; a glow. 

  • Particularly, such a cleansing of a toilet. 

  • Any tinge of red colour like that produced on the cheeks by a sudden rush of blood. 

  • A group of birds that have suddenly started up from undergrowth, trees, etc. 

  • A sudden flood or rush of feeling; a thrill of excitement, animation, etc. 

verb
  • To cause to be full; to flood; to overflow; to overwhelm with water. 

  • To operate a placer mine, where the continuous supply of water is insufficient, by holding back the water, and releasing it periodically in a flood. 

  • To take suddenly to flight, especially from cover. 

  • To fill in (joints); to point the level; to make them flush. 

  • To cleanse by flooding with generous quantities of a fluid. 

  • To dispose or be disposed of by flushing down a toilet 

  • To be cleansed by being flooded with generous quantities of water. 

  • To flow and spread suddenly; to rush. 

  • To clear (a buffer or cache) of its contents. 

  • To fill underground spaces, especially in coal mines, with material carried by water, which, after drainage, constitutes a compact mass. 

  • To cause to blush. 

  • To cause to take flight from concealment. 

  • Particularly, to cleanse a toilet by introducing a large amount of water. 

  • To write (the data) to primary storage, clearing it from the buffer or cache. 

  • To show red; to shine suddenly; to glow. 

  • To excite, inflame. 

  • To become suffused with reddish color due to embarrassment, excitement, overheating, or other systemic disturbance, to blush. 

adj
  • Wealthy or well off. 

  • Smooth, even, aligned; not sticking out. 

  • Full of vigour; fresh; glowing; bright. 

  • Affluent; abounding; well furnished or suppled; hence, liberal; prodigal. 

adv
  • Suddenly and completely. 

slack

noun
  • A tidal marsh or shallow that periodically fills and drains. 

  • Unconditional listening attention given by client to patient. 

  • A temporary speed restriction where track maintenance or engineering work is being carried out at a particular place. 

  • The part of anything that hangs loose, having no strain upon it. 

  • Small coal; coal dust. 

  • A valley, or small, shallow dell. 

adj
  • Moderately warm. 

  • Vulgar; sexually explicit, especially in dancehall music. 

  • Not active or busy, successful, or violent. 

  • Excess; surplus to requirements. 

  • Lax; not tense; not firmly extended. 

  • Lacking diligence or care; not earnest or eager. 

  • Lax. 

  • Moderate in speed. 

  • Weak; not holding fast. 

adv
  • Slackly. 

verb
  • To slacken. 

  • To lose cohesion or solidity by a chemical combination with water; to slake. 

How often have the words flush and slack occurred in a corpus of books? (source: Google Ngram Viewer )