expendable - Not essential, able to be used up or sacrificed without significant loss, easily replaced or not necessary for long-term use.
The workers didn't feel any sense of job security, and they felt expendable, because they were fired whenever the demand for the factory work slowed down.
bellow - For a person or animal to emit a deep loud shout or roar, usually in pain or anger.
When Joan entered the office an hour late the third time this week, her manager Mr. Fass bellowed that if she wanted to keep her job, she should consider coming on time from now on.
