run into

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb literally To enter by running.
• verb To collide with.
• verb To cause to collide with.
• verb by extension To encounter or meet unexpectedly (literally or figuratively).
• verb dated, of flowing water To reach, to flow into (a body of water).
• verb To blend into; to be followed by or adjacent to without there being a clear boundary.
• verb To cause to blend into.
• verb To reach a large figure.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb come together
• verb hit against; come into sudden contact with
• verb collide violently with an obstacle
• verb be beset by