Definitions of excitement:

• noun:   the state of being emotionally aroused and worked up

  Example: "His face was flushed with excitement and his hands trembled"

• noun:   disturbance usually in protest
• noun:   something that agitates and arouses

  Example: "He looked forward to the excitements of the day"

• noun:   the feeling of lively and cheerful joy

  Example: "He could hardly conceal his excitement when she agreed"