Fair ball and Physical contact

Fair ball noun - (baseball) a ball struck with the bat so that it stays between the lines (the foul lines) that define the width of the playing field.

Physical contact and fair ball are semantically related. In some cases you can use "Physical contact" instead a noun phrase "Fair ball".

Physical contact noun - The act of touching physically.

Fair ball and physical contact are semantically related. Sometimes you can replace phrase "Fair ball" with "Physical contact", this phrases are similar.