Though Harry had never seen them in use, he recognized that they were weapons.

The system saw a large increase in use in the period between 1950 and 1980 as more people moved into suburban areas of the county.

Usually we would want to see a term in substantial use for at least three years.

Have you ever seen a building rot while still in use?

It occurs to me that I haven't actually seen one in use for years.

This claimed benefit was not seen in general clinical use.

It will be a long time before we see it in wide use.

All the while live performances were held inside to raise money and give the public a chance to see theater in use.

He had seen them in use while on a visit to Ventria.

Most bystanders don't even know the trouble lights are there, and few have seen them in use.