Jump out from a hiding place and surprise (someone).
Roget 446: be become visible etc. adj.; appear, open to the view; meet the eye, catch the eye; basset; present itself, show manifest itself, produce itself, discover itself, reveal itself, expose itself, ... show more
Come into or as if into flower.
Moby thesaurus: arise, bail out, be born, become, belch, blow open, blow out, bob up, break cover, break forth, break out, bud, burgeon, burst out, come, come forth, come out, come to be, crop up, debouch ... show more.
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