Meiling signed up for the economics course. (economy)

Various practices by police officers were brought to light by the enquiry. (practice)

She took the job to be financially independent. (finance)

We can look forward to a period of prosperity. (prospects)

You must forgive my inexperience in these matters. (experience)

I've never known such a quarrelsome person. (quarrel)

She uses a good-quality oil for proper lubrication. (lubricate)

Like oil, gas is a fossil fuel and is thus a nonrenewable source of energy. (renew)

When Jean made up for the play, she was unrecognizable. (recognize)

Sam was accused of stealing some confidential documents. (confidence)