[plural] [noun]We stared up at the heavens (= the sky) trying to see the plane.Just when we got to the park, the heavens opened (= it suddenly started to rain a lot).(dated) Heavens (above)/Good heavens is used to express surprise or anger.
HEAVENS
Meaning of HEAVENS in English
Cambridge English vocab. Кембриджский английский словарь. 2012