Definition of "balloon"

balloon

/bəˈluːn/

noun
plural balloons
1. An inflatable buoyant object, often (but not necessarily) round and flexible.
2. Such an object as a child’s toy or party decoration.
3. Such an object designed to transport people or equipment through the air.
  Quotations
  We immediately threw out all the little things we had with us, ſuch as biſcuits, apples, &c. and after that one of our oars or wings; but ſtill deſcending, we caſt away the other wing, and then the governail ; having likewiſe had the precaution, for fear of accidents, while the Balloon was filling, partly to looſen and make it go eaſy, I now ſucceeded in attempting to reach without the Car, and unſcrewing the moulinet, with all its apparatus; I likewiſe caſt that into the ſea.
  1786, John Jeffries, Jean-Pierre Blanchard, A narrative of the two aerial Voyages of Dr. J. with Mons. Blanchard: with meteorological observations and remarks.‎, page 45
4. (medicine) A sac inserted into part of the body for therapeutic reasons; such as angioplasty.
5. A speech bubble.
6. A type of glass cup, sometimes used for brandy.
7. (architecture) A ball or globe on the top of a pillar, church, etc.
8. (chemistry) A round vessel, usually with a short neck, to hold or receive whatever is distilled; a glass vessel of a spherical form.
9. (pyrotechnics) A bomb or shell.
10. (obsolete) A game played with a large inflated ball.
11. (engraving) The outline enclosing words represented as coming from the mouth of a pictured figure.
12. (slang) A woman's breast.
13. (slang) A small container for illicit drugs made from a condom or the finger of a latex glove, etc.
  Quotations
  And all I had to do in return was take a drive up to Ricardo's place on the way home and then a pretty edgy one back to Rondebosch with a balloon of coke sandwiched between two pairs of underpants.
  2016, David Cornwell, Like it Matters
14. (finance) Synonym of balloon payment.
  Quotations
  The purpose of the balloon is to reduce the periodic payment required during the life of the financing period.
  1986, James M. Johnson, Fundamentals of finance for equipment lessors
verb
third-person singular simple present balloons, present participle ballooning, simple past and past participle ballooned
1. (intransitive) To increase or expand rapidly.
  Quotations
  For the franchise’s ballooning, unmanageable cast of mutants, picking sides now seems to have less to do with choosing between cooperation (which the recent movies implicitly distrust) and resistance, and more with whichever flashback-prone white dude’s overbearing savior complex works for you.
  2016 May 23, Ignatiy Vishnevetsky, “Apocalypse pits the strengths of the X-Men series against the weaknesses”, in The Onion AV Club‎
  ScotRail has long been run at a significant subsidy, with only the Edinburgh-Glasgow express line making a profit from fares, but government support has ballooned since the start of the pandemic.
  2022 April 6, Conrad Landin, “ScotRail in the public eye...”, in RAIL, number 954, page 39
2. (intransitive) To go up or voyage in a balloon.
3. (transitive) To take up in, or as if in, a balloon.
4. (transitive) Of a person: to become gradually heavier; to gain weight.
5. (transitive) To inflate like a balloon.
  Quotations
  A puff of wind from the open door caught and ballooned the scanties; off they sailed, out the window billowing into freedom.
  1944, Emily Carr, “Peach Scanties”, in The House of All Sorts
6. (transitive, sports) To strike (a ball) so that it flies high in the air.
  Quotations
  After four minutes, leading goalscorer Haworth slid in but ballooned the ball over from six yards, and Hume then outran the defence to get to the by-line, but he could only hit his cross straight out.
  2015, Steve Wilson, A View From The Terraces (part 2, page 138)
7. (aviation) Of an aircraft: to plunge alternately up and down.
  Quotations
  The plane ballooned into the air about 20 feet, banging down again for another good-sized hop.
  1961, Flying Magazine, volume 69, number 3, page 86