Definition of "capsize"

capsize

/kæpˈsaɪz/

verb
third-person singular simple present capsizes, present participle capsizing, simple past and past participle capsized
1. (intransitive, nautical) To overturn.
  Quotations
  Baby, I think I'm capsizing / The waves are rising and rising
  1982, “Sexual Healing”, performed by Marvin Gaye
2. (transitive, nautical) To cause (a ship) to overturn.
  Quotations
  But what if carrying sail capsize the boat?
  1819–1824, [Lord Byron], Don Juan, London, (please specify |canto=I to XVII)
3. (intransitive, of knots) To deform under stress.
  Quotations
  There are even cases where a totally different knot may result when carelessly pulled. Tie the Granny Knot around any object and pull one end, and it will capsize into Two Half Hitches.
  1944, Clifford Warren Ashley, The Ashley Book of Knots, page 19
noun
plural capsizes
1. The act of, or occurrence of capsizing or overturning.