To approach in a determined manner.
To steer away from the wind; to approach from windward.
To intensify one's efforts.
To exert downward pressure on one's abdomen, as in giving birth, forcing out feces, and some similar bodily maneuvers.
To push (someone) to the ground; to defeat, overcome.
Used other than figuratively or idiomatically: see bear, down.
To examine scrupulously.