noun

• (entomology) Any of various species of dragonfly of the genera Apocordulia and Austrocordulia, endemic to Australia.
• (politics) An advocate of aggressive political positions and actions.
  "A hawk by nature, Ellenborough strongly favoured presenting St Petersburg with an ultimatum warning that any further incursions into Persia would be regarded as a hostile act."
• (game theory) An uncooperative or purely selfish participant in an exchange or game, especially when untrusting, acquisitive or treacherous. Refers specifically to the prisoner's dilemma, a.k.a. the Hawk-Dove game.
• (US, especially Chicago, and nationwide in African-American, often with "the") Cold, sharp or biting wind.
  "[…] take-out sandwich from Arnie's on Jackson, then a brisk walk to Michigan Avenue in the face of the "Hawk," blowing newspapers and skirts and the gulls wheeling over the Michigan Avenue Bridge in front of […]"

verb

• (transitive) To hunt with a hawk.
  "To hawke, or els to hunt From the auter to the funt"
• (intransitive) To make an attack while on the wing; to soar and strike like a hawk.
  "to hawk at flies"

verb

• (transitive) To sell; to offer for sale by outcry in the street; to carry (merchandise) about from place to place for sale; to peddle.
  "The vendors were hawking their wares from little tables lining either side of the market square."

verb

• (transitive, intransitive) To expectorate, to cough up (something, such as mucus) from one's throat; to produce (something) by coughing or clearing one's throat.
  "to hawk a loogie"
• (transitive, intransitive) To try to cough up something from one's throat; to clear the throat loudly; to cough heavily, especially causing uvular frication.
  "Grandpa sat on the front porch, hawking and wheezing, as he packed his pipe with cheap tobacco."