To attack unexpectedly.
To take unawares.
To do something to (a person) that they are not expecting, as a surprise.
To cause (someone) to feel unusually alarmed or delighted by something unexpected.
To undergo or witness something unexpected.
To cause surprise.
The feeling that something unexpected has happened.
Something unexpected.
To charge, as with a fault.
To assign a task to, or impose a task on.
To oppress with severe or excessive burdens; to tax
Any piece of work done.
A difficult or tedious undertaking.
A process or execution of a program.
An objective.
A piece of work done as part of one’s duties.