To approach someone in a very determined way.(verb)
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Use "bear down on" in a sentence
"Forming a right angle with the ice, the rock wall on my left allowed me to make stemming maneuvers; using counterpressure, I could more confidently bear down on the crampon points of my right foot, where they were embedded in the ice."
""Truly" -- said the King "you shall never persuade me leave my followers in the hands of Saracens, without at least doing all in my power deliver them; and I order you put about, and let us bear down on them.""
"Lendle's small mouth fell open and he found himself at an uncustomary loss for words as he watched the wall of water bear down on the ship."