workload

As nouns the difference between workload and labor

is that workload is the amount of work assigned to a particular worker, normally in a specified time period while labor is standard spelling of from=American spelling|lang=en|labour.

As a verb labor is

standard spelling of from=American spelling|lang=en|labour.

As a proper noun Labor is

the Australian Labor Party.

As nouns the difference between workload and load

is that workload is the amount of work assigned to a particular worker, normally in a specified time period while load is a burden; a weight to be carried.

As a verb load is

to put a load on or in (a means of conveyance or a place of storage).

As nouns the difference between workload and courseload

is that workload is the amount of work assigned to a particular worker, normally in a specified time period while courseload is the workload involved in an academic course.