What is the meaning of Come_across?

Used other than figuratively or idiomatically: see come, across.

To change sides; to cross over to work for the opposition.

To give an appearance or impression; to project a certain image; to seem or appear (to be some way). [ with as; or with like]

To find, usually by accident.

To produce what was desired; to come up with the goods. [with with]

To give in and do what is wanted or expected; to acquiesce to something.

To have sex; to give in to seduction.

To confess to something.

Source: wiktionary.org