Backlog and Logjam

Backlog noun - An accumulation of jobs not done or materials not processed that are yet to be dealt with (especially unfilled customer orders for products or services).

Logjam and backlog are semantically related. in accumulation topic. In some cases you can use "Logjam" instead a noun "Backlog".

Logjam noun - A crowded mass (as of cars) that impedes or blocks movement.

Backlog and logjam are semantically related. Sometimes you can use "Backlog" instead a noun "Logjam".