Alternative form of that train has left the station

That opportunity has already passed; that cannot be undone.

(India) Away from home; out of town.

A temporary facility, such as a tent, set up to provide supplies to participants in endurance events, or first aid and provisions during disasters, military operations, etc.

plural of aid station

A mobile home installed permanently at a campsite.

plural of static caravan

A form of separation of duties which is enforced at the user-role assignment level rather than dynamically based on previous user actions.

Used other than figuratively or idiomatically: see particle, statistics.

(quantum mechanics) A particle statistics model that describes the behaviour of collections of particles (bosons) that do not obey the Pauli exclusion principle.