jet vs slack

jet

noun
  • The colour of jet coal, deep grey. 

  • A collimated stream, spurt or flow of liquid or gas from a pressurized container, an engine, etc. 

  • A type of airplane using jet engines rather than propellers. 

  • A turbine. 

  • A rocket engine. 

  • A hard, black form of coal, sometimes used in jewellery. 

  • A part of a carburetor that controls the amount of fuel mixed with the air. 

  • A narrow cone of hadrons and other particles produced by the hadronization of a quark or gluon. 

  • A spout or nozzle for creating a jet of fluid. 

adj
  • Propelled by turbine engines. 

  • Very dark black in colour. 

verb
  • To shoot forward or out; to project; to jut out. 

  • To travel on a jet aircraft or otherwise by jet propulsion 

  • To move (running, walking etc.) rapidly around 

  • To leave; depart. 

  • To spray with liquid from a container. 

  • To jerk; to jolt; to be shaken. 

  • To spray out of a container. 

  • To adjust the fuel to air ratio of a carburetor; to install or adjust a carburetor jet 

  • To strut; to walk with a lofty or haughty gait; to be insolent; to obtrude. 

slack

noun
  • Small coal; coal dust. 

  • 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. 

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

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

  • A valley, or small, shallow dell. 

verb
  • To slacken. 

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

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. 

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