Backup and Locum

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

Locum and backup are semantically related. in substitute topic. In some cases you can use "Locum" instead a noun "Backup".

Nearby Word: backing

Locum noun - Someone (physician or clergyman) who substitutes temporarily for another member of the same profession.

Backup and locum are semantically related. You can use "Backup" instead a noun "Locum".