A possibility due to a favorable combination of circumstances:
— The holiday gave us the opportunity to visit Washington.

synonym: chance.

Roget 134: timeliness, occasion, opportunity, opening, room; event (eventuality) 151; suitable season, proper season, suitable time, proper time; high time; opportuneness etc. adj.; tempestivity^†.    crisis, turn, juncture, conjuncture; crisis, turning point, given time.    nick of time; golden opportunity, well timed opportunity, fine opportunity, favorable opportunity, opening; clear stage, fair field; mollia tempora [Lat.]; fata Morgana [Lat.]; spare time etc. (leisure) 685.    ... show more

Roget 151: eventuality, event, occurrence, incident, affair, matter, thing, episode, happening, proceeding, contingency, juncture, experience, fact; matter of fact; naked fact, bare facts, just the facts; phenomenon; advent.    business, concern, transaction, dealing, proceeding; circumstance, particular, casualty, accident, adventure, passage, crisis, pass, emergency, contingency, consequence; opportunity (occasion) 143.    the world, life, things, doings, affairs in general; things in general, affairs in general; the times, state of affairs, order of the day; course of things, tide of things, stream of things, current of things, run of things, march of things, course of events; ups and downs of life, vicissitudes of life; chapter of accidents etc. (chance) 156; situation etc. (circumstances) 8.    ... show more

Dutch: geluk, toeval, opportuniteit, mogelijkheid, gelegenheid, kans
Polish: szansa