obstruction, obstructor, obstructer, impediment, impedimenta (noun)
any structure that makes progress difficult
obstruction, blockage (noun)
the physical condition of blocking or filling a passage with an obstruction
obstacle, obstruction (noun)
something immaterial that stands in the way and must be circumvented or surmounted
"lack of imagination is an obstacle to one's advancement"; "the poverty of a district is an obstacle to good education"; "the filibuster was a major obstruction to the success of their plan"
the act of obstructing
"obstruction of justice"
getting in someone's way
The act of obstructing, or state of being obstructed.
That which obstructs or impedes; an obstacle; an impediment; a hindrance.
The condition of having the natural powers obstructed in their usual course; the arrest of the vital functions; death.
In baseball, when a fielder illegally hinders a baserunner, the fielder is guilty of obstruction. Baserunners are generally permitted the free privilege to run from base to base without being physically blocked or hindered by a fielder. The only time that a fielder does not "get out of the way" of a baserunner is when the fielder is fielding or in possession of the ball.