Cons

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

   pros and cons

2. (abbreviation) conservative

   own the cons

noun

A convicted criminal, a convict.

noun

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

noun

An organized gathering such as a convention, conference or congress.

1. The conversion of part of a building.

   We're getting a loft con done next year.

noun

A data structure in LISP that is a pair of pointers, car and cdr, used mainly for lists.

verb

To obtain a list from a cons or a nesting of conses; to prepend an element to a list by forming a cons of that element and the list; to obtain a list from a smaller one by repeated application of such kind of prepending.

1. To study or examine carefully, especially in order to gain knowledge of; to learn, or learn by heart.
2. To know, understand, acknowledge.

verb

To trick or defraud, usually for personal gain.

1. To direct a ship; to superintend the steering of (a vessel); to watch the course of (a vessel) and direct the helmsman how to steer (especially through a channel, etc, rather than steer a compass direction).

   The pilot conned the ship safely into the harbor.