Verb
(military, aviation) To change the flight path of a craft or weapon to reduce the chance of an accidental collision or conflict with other obstacles, the terrain or weather
(military) To provide information to a military force in order to prevent escalation of a conflict
(computer science) To resolve contradictory conclusions or responses to queries in a rule-based or deductive reasoning system.
To alter (something) to avoid conflicting with something else
We need to deconflict our schedules to find a time when we can all meet.