boon

1 a thing that helps the couple's generous donation was a great boon to the charity's fund-raising campaign Synonyms advantage, aid, asset, benefit, helpRelated Words hand, lift, pick-me-up; support, sustenance; blessing, godsend, windfall; recourse, refuge, resort, resourceNear Antonyms constraint, inhibitor, liability, obstacle, obstruction, restraint, strangleholdAntonyms disadvantage, drawback, encumbrance, hindrance, impediment, minus

2 an act of kind assistance a softhearted man who finds it hard to deny any boon, whether it be for friend or stranger Synonyms benevolence, favor, courtesy, grace, indulgence, kindness, mercy, service, turnRelated Words dispensation, waiver; advantage, benefit, blessing, godsend, manna; liberty, license (or licence), privilegeNear Antonyms hindrance, hurdle, impediment, interference, obstacle

3 something granted as a special favor at the prep school, seniors are given certain boons that make them the envy of underclassmen Synonyms appanage (also apanage), privilege, concession, honorRelated Words courtesy; claim, entitlement, right; birthright; perquisite, prerogative; charter, grant, patent; exemption, immunity, waiverNear Antonyms burden, duty, obligation, responsibility

4 something that provides happiness or does good for a person or thing the unexpected rain was a boon for the farmers who had been struggling with drought Synonyms benediction, benefit, blessing, felicity, godsend, good, manna, windfallRelated Words grace, mercy; favor, kindness, mitzvah; advantage, aid, assistance, gift, help, relief, support; anodyne, comfort, consolation, solace; bonus, extra, lagniappe; delight, joy, pleasureNear Antonyms hex, hoodoo, jinx; bother, irritant, nuisance, pest; disadvantage; cross, misery, trial, tribulationAntonyms affliction, bane, curse, evil, plague, scourge