Backlog and Tailback

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).

Tailback and backlog are semantically related. In some cases you can use "Tailback" instead a noun "Backlog".

Tailback noun - (American football) the person who plays tailback.

Backlog and tailback are semantically related. Sometimes you can use "Backlog" instead a noun "Tailback".