1. A system of government by imperial authority.

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

• imperialsm,
• imperilalism,
• imperalisim,
• emperialism,
• imperialsism,
• imperalism,
• imperilism,
• imperalist,
• imperialise,
• imprialism,
• imperoalism,
• imperialsim,
• imperlism,
• emperialist,
• emperilism,
• imerialism,
• imperialisim,
• imperielism,
• imperialusm,
• imperializm

• imbricate,
• imperturbable,
• impermeable,
• imperially,
• imperforate,
• imperialistic,
• imperialist,
• imipramine,
• impermissible,
• imperishable,
• imbrication,
• imperiousness,
• impermissibly,
• improper,
• impersonally,
• impersonal,
• imperious,
• imperial beard,
• imperial moth,
• imperiously,
• imperviable,
• imperial.

The adjective form of the word "imperialism" is "imperialistic".

The plural of the "imperialism" can be the "imperialisms".

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