I. phrasal
1. : to occur or suggest itself to
the possibility … came across her — Jane Austen
2. : to meet, find, or encounter especially unexpectedly or by chance
I came across grandfather's diary in the attic
perhaps we will come across your sister while we are shopping
II. intransitive verb
1. : to supply or furnish something demanded or requested ; especially : to pay over money : contribute — often used with with
come across now, I've asked for it often enough
the man came across with the price of a drink
2. : to succeed in producing a desired effect
he never came across as well on the stage as on radio