Definitions of spirit:

• noun:   a fundamental emotional and activating principle determining one's character
• noun:   any incorporeal supernatural being that can become visible (or audible) to human beings
• noun:   the vital principle or animating force within living things
• noun:   the general atmosphere of a place or situation and the effect that it has on people
• noun:   an inclination or tendency of a certain kind
• noun:   the state of a person's emotions (especially with regard to pleasure or dejection)

  Example: "He was in good spirits"

• noun:   animation and energy in action or expression
• noun:   the intended meaning of a communication
• verb:   infuse with spirit

  Example: "The company spirited him up"