Definitions of standing:

• noun:   the act of assuming or maintaining an erect upright position
• noun:   social or financial or professional status or reputation

  Example: "Of equal standing"

• adjective:   (of persons) on the feet; having the torso in an erect position supported by straight legs

  Example: "Standing room only"

• adjective:   permanent

  Example: "A standing army"

• adjective:   maintaining an erect position

  Example: "Standing timber"

• adjective:   not cut down

  Example: "Standing timber"

• name:  A surname (very rare: popularity rank in the U.S.: #45312)