1. A post outside a camp.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• outbust,
• outkast,
• outpat,
• outpout,
• autposy,
• outpt,
• outpus,
• moutpart,
• outmost,
• outpirt,
• ouport,
• outpot,
• ouptort,
• outport,
• iutpost,
• kutpost,
• outpoast,
• outpostt,
• outpoar,
• outfortm

The adjective form of the word "outpost" is "outpostish". However, it is not a commonly used adjective, and alternative phrases such as "outpost-like" or "outpost-related" are often used instead.

The plural of the "outpost" can be the "outposts".

The singular of the "outpost" can be the "outpost".