Plain English Meaning

Stop before the line ATC names, and don't cross it until they tell you it's okay. Read the instruction back so the controller knows you heard it correctly.

Full Definition

An ATC instruction directing a pilot to stop and remain clear of a specified point — typically a runway, taxiway, or marked holding position — and to not cross it until further clearance is received. The pilot must read back the hold short instruction, including the runway or location, and may not proceed past the holding point without explicit ATC authorization.

Context Anchor

Heard during taxi, before crossing or entering a runway, or when ATC needs an aircraft to wait at a specific point on the .