erect vs stiff

erect

adj
  • Rigid, firm; standing out perpendicularly, especially as the result of stimulation. 

  • Having an erect penis. 

  • Upright; vertical or reaching broadly upwards. 

  • Watchful; alert. 

  • Elevated, as the tips of wings, heads of serpents, etc. 

verb
  • To animate; to encourage; to cheer. 

  • To spin up and align to vertical. 

  • To lift up; to elevate; to exalt; to magnify. 

  • To raise and place in an upright or perpendicular position; to set upright; to raise. 

  • To set up or establish; to found; to form; to institute. 

  • To put up by the fitting together of materials or parts. 

  • To enter a state of physiological erection. 

  • To cast or draw up (a figure of the heavens, horoscope etc.). 

  • To cause to stand up or out. 

  • To set up as an assertion or consequence from premises, etc. 

stiff

adj
  • Rigid; hard to bend; inflexible. 

  • Of a shot: landing so close to the flagstick that it should be very easy to sink the ball with the next shot. 

  • Delivered more forcefully than needed, whether intentionally or accidentally, thus causing legitimate pain to the opponent. 

  • Dead, deceased. 

  • Erect. 

  • Inflexible; rigid. 

  • Beaten until so aerated that they stand up straight on their own. 

  • Formal in behavior; unrelaxed. 

  • Harsh, severe. 

  • Potent. 

  • Painful as a result of excessive or unaccustomed exercise. 

  • Having a dense consistency; thick; (by extension) Difficult to stir. 

  • Of an equation: for which certain numerical solving methods are numerically unstable, unless the step size is taken to be extremely small. 

  • Keeping upright. 

adv
  • Of the wind, with great force; strongly. 

verb
  • To tip ungenerously. 

  • To kill. 

  • To cheat someone 

  • To fail to pay that which one owes (implicitly or explicitly) to another, especially by departing hastily. 

noun
  • Any hard hand where it is possible to exceed 21 by drawing an additional card. 

  • A person who leaves (especially a restaurant) without paying the bill. 

  • A customer who does not leave a tip. 

  • A person who is deceived, as a mark or pigeon in a swindle. 

  • A cadaver; a dead person. 

  • Negotiable instruments, possibly forged. 

  • A note or letter surreptitiously sent by an inmate. 

  • A flop; a commercial failure. 

  • An average person, usually male, of no particular distinction, skill, or education. 

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