Words similar to undercover

Example sentences for: undercover

How can you use “undercover” in a sentence? Here are some example sentences to help you improve your vocabulary:

Sales of goods and services in undercover operations (580)
The story adds that about 70 percent of the city's undercover cops are black or Hispanic.
Sales of goods and services in undercover operations.
Recent undercover operations have detected, says the paper, attempts by Russian groups to sell Colombian drug lords a helicopter, surface-to-air missiles and a submarine.
Police Chief: The chief was caught leasing a luxury apartment for less than half its fair price (his roommate, another officer, told the landlord they needed the space for an undercover operation).