Bitesize Business English Lesson #25: Cost

The video tutorial explains the concept of 'cost' as both a noun and a verb. As a noun, it refers to the amount of money needed for something, while as a verb, it involves calculating future expenses. The tutorial also covers idiomatic expressions involving 'cost', such as 'cost an arm and a leg', which means something is very expensive, and 'cost somebody dear', indicating a significant sacrifice. These idioms highlight the various ways 'cost' is used in everyday language.

How can 'cost' be used as a verb? Provide an example.

What does the idiom 'cost you an arm and a leg' imply?