1. border, adjoin, edge, abut, march, butt, butt against, butt on, touch, adjoin, meet, contact

usage: lie adjacent to another or share a boundary; "Canada adjoins the U.S."; "England marches with Scotland"

2. run into, bump into, jar against, butt against, knock against, hit, strike, impinge on, run into, collide with

usage: collide violently with an obstacle; "I ran into the telephone pole"

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