Con

To study, especially in order to gain knowledge of.

To know, understand, acknowledge.

Variant spelling of conn: to conduct the movements of a ship at sea.

To trick or defraud, usually for personal gain.

To give the necessary orders to the helmsman to steer a ship in the required direction through a channel etc. (rather than steer a compass direction).

A disadvantage of something, especially when contrasted with its advantages (pros).

A convicted criminal, a convict.

A fraud; something carried out with the intention of deceiving, usually for personal, often illegal, gain.

The navigational direction of a ship.

An organized gathering such as a convention or conference.