A reserve source or supply.
A log containing text previously read, as in text-based video games or chat rooms.
A large log to burn at the back of a fire.
An accumulation or buildup, especially of unfilled orders, unconsumed products or unfinished work.
To acquire something as a backlog, or to become a backlog
A catchment area, or the people it serves.
Any structure or land feature which catches and holds water; the collection of such water.
To divide into catchment areas.