Definitionen
1.VerbUsed other than figuratively or idiomatically: see bear, down.
2.VerbTo steer away from the wind; to approach from windward.
3.VerbTo push (someone) to the ground; to defeat, overcome. .mw-parser-output .defdate{font-size:smaller}
4.VerbTo maintain one's position against (someone) in a debate; to stand one's ground against.
5.VerbTo intensify one's efforts."It's 9:41, 58 degrees, and I'm flunking out. Time to bear down."
6.VerbTo approach in a determined manner.
7.VerbTo exert downward pressure on one's abdomen, as in giving birth, forcing out feces, and some similar bodily maneuvers.