The word "Aikido" in Japanese is made up of three character, or kanji.
The first and most important is "AI" wihich means "energy, spirit, mind."
In the larger context, "KI" means "the spirit of the Universe," and not just the spirit of mere human beings.
The third and last character is "DOwhich means "the way," as in Ken-dp, or Ju-do, to signify that the study of Aikido does not inbolve merely self-defense techniques, but includes positive character-building ideals which a person can incorporate into his life.
These three Japanese kanji, "AI-KI-DO," therefore, mean: