Missing to me is firing a projectile down range and not hitting the target. Anything else is not getting a shot for " X" reason.
One thing i notice guys saying that bugs me is when they say they passed on a shot, when there never was a shot to be taken.(especially in archery) " Yea I passed on a buck I saw about 40 yds away in the brush" NO you didn' t pass, you saw a buck that never presented itself for a shot. Passing is when you have a deer within range, and a clear shot and elect not to take it for whatever reason.