Definition
To imitate the conditions, behavior, or operation of a real system, situation, or piece of equipment closely enough that a person can train, test, or evaluate as if the real thing were present, without actually using it or being exposed to its real consequences.
Plain English
To act out or recreate something realistically so a pilot can practice or test responses safely, without it actually happening.
Context Anchor
Seen in flight training, simulator sessions, emergency practice, and aircraft system checks.
Derivation
From the Latin simulare, meaning 'to make like' or 'to copy.' In aviation, the word keeps that core idea: produce a convincing copy of a real condition so a pilot can train against it safely.
Why Pilots Care
Enables repeated practice of critical skills and emergencies in a controlled environment, building competence without exposing the aircraft or occupants to actual danger.
Intuition Check
Simulate does not mean the real event is fully happening. It means the event or condition is being imitated closely enough for training, testing, or demonstration.
Example Sentence 1
During the checkride, the examiner pulled the throttle to idle to simulate an engine failure shortly after takeoff.
Example Sentence 2
The simulator can accurately simulate icing conditions so pilots learn to recognize and respond correctly.