気

Core meaning

air, gas, steam, vapor; spirit；breath; natural phenomenon

き(KI), け(KE), いき(IKI)

元気(げんき) energy, vitality, spirits, 天気(てんき) Weather,, 病気(びょうき) Sickeness, poor health, 電気(でんき) Electricity

人気(にんき) Popularity, 霊気(れいき) Energy, Reiki (healing), 気分(きぶん) Mood, Feeling, 空気(くうき) Air

気 has many connotations including as an invisible field of energy in martial arts and the energy channelled in reiki healing techniques.

「お元気ですか」 is a polite greeting equivalent to \"how are you?\"