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1. To overturn or fall to the side. After he ran into the table, the vase wobbled and tipped over, but luckily it didn't break. I got so woozy from the medication that I actually tipped over at one point.
2. To cause someone or something to overturn or fall onto their or its side. A noun or pronoun can be used between "tip" and "over." The rush of protestors tipped over the security guards keeping them from entering the building. Strong winds will tip your boat over if you don't secure the sails properly.
tip someone over
to cause someone to fall. Oh! You almost tipped me over! Todd fell against Maggie and tipped her over.
tip something over
to cause something to fall over. Did you tip this chair over? Who tipped over the chair?
to topple over and fall. Roger shook the table slightly, and the vase tipped over. The truck was overloaded and looked so heavy that I thought it would tip over.
1. To totter and fall; overturn: The vase tipped over and water poured out across the table.
2. To cause something to totter and fall; cause something to overturn: The wind tipped over the sailboat. Don't stand up in the canoe, or you will tip it over.