United also has 500 aircraft on order or under option, and more orders are expected soon.

A: The Rat books have been under option for twelve years.

I had five of his books under option for nothing.

The movie project is no longer under option, but perhaps it will be revived.

The six additional boats under option include one 166-foot and five 110-foot models.

It has also increased land under option from 5,000 to 6,500 plots.

It has 36 aircraft on order and 34 under option.

I may still have something of his under option somewhere.

In 2004 Dead Girls was reportedly under option to a film production company.

After that, the material was under almost continuous option, passing through the hands of several producers and studios.