Plural of evolution; multiple instances of evolutionary change, or the various processes of gradual development.
From Latin 'evolutio' (unrolling) via French, + plural '-s'. Used since the term entered English in the 17th century.
We talk about 'biological evolution' as singular, but 'evolutions' reminds us that cultural, technological, and social systems are constantly evolving too—it's not just animals.
Complete word intelligence in one call. Free tier — 50 lookups/day.