standoff

Short definition from Wiktionary

Noun

1. 1
   A device which maintains a fixed distance between two objects, especially between a surface and a sign or electrical wiring.
2. 2
   A deadlocked confrontation between antagonists.

Adjective

1. 1
   For use at a distance sufficient from the target to allow defensive fire to be evaded.

Verb

1. 1
   Nonstandard spelling of stand off.