boon /buːn/noun 6adjective 3forms 3phrases 2 noun6 •A good thing; a thing to be thankful for or to appreciate duly.Finding the dry cave was a boon to the weary travellers.Anaesthetics are a great boon to modern surgery. •That which is asked or granted as a benefit or favor; a gift or benefaction.I gave you life. Can you not return the boon by giving me death, my lord? — 1871 •A blessing, typically a supernatural power, granted to an ascetic by a god or goddess.A telling story is that of Vikra, who, after practicing severe tapas for many years, called on Śiva, asking him to grant the boon that whosoever's head he would touch, that person would die instantly. — 2007 •The woody portion of flax, separated from the fiber as refuse matter by retting, braking, and scutching. •(dialect, UK) An unpaid service due by a tenant to his lord. •(no longer used) A prayer; petition.The wofull husbandman doth lowd complaine, / To see his whole yeares labor lost so soone, / For which to God he made so many an idle boone. — 1590 adjective3 •Gay; merry; jovial; convivial.Greedily she ingorg’d without restraint, / And knew not eating Death: Satiate at length, / And hight’nd as with Wine, jocond and boon, / Thus to herself she pleasingly began. — 1667 •(no longer used) Kind; bountiful; benign. •(no longer used) Good; prosperous. formsboons · booner · boonest Phrases with boon a boon and a baneSomething that is both a benefit and an affliction. boon and baneSomething that is both a benefit and an affliction.