aubaine w języku angielskim

windfall [windfalls]▼◼◼◼(sudden large benefit)
noun
[UK: ˈwɪnd.fɔːl] [US: ˈwɪnd.ˌfɒl]

boon [boons]▼◼◼◼(A blessing or benefit)
noun
[UK: buːn] [US: ˈbuːn]

gleek▼(good fortune)
noun

serendipity [serendipities]▼(unsought, unintended... and/or learning experience that happens by accident)
noun
[UK: ˌse.rən.ˈdɪ.pɪ.ti] [US: ˌse.rən.ˈdɪ.pə.ti]