Standard by which other similar things are judged. evaluate something by comparison with benchmark.

interrupt event, activity, or process by causing disturbance or problem.

Rapid descent of an aircraft in a steep spiral. become increasingly chaotic and out of control.

Moving from a higher to a lower condition/place. towards lower place or level.

Suggested. put forward plan for consideration.

To donate, give (money) or help to something.

in space separating things. Among two or more people who share something.

Epidemic over a wide geographical area. outbreak of pandemic disease.

branch of mechanics concerned with motion and forces. Ways that people behave and function in a group.

irregular rising and falling in number or amount. Acts or processes of varying continuously in strength.

commercial business. Businesses that sell things or provides services. associate with.

without break in continuity. To start doing again after a break, pause, or stop.

Something useful or valuable, usually for sale.

Being harmful, unwanted or unhelpful. no. Image on camera film used to make a photo. refuse to accept.

becoming greater in size. To make or become larger in size or amount.