Eagerness
Part of speech: noun
Definition: The state or quality of being eager; ardent desire. Tartness; sourness
Example sentence: Their eagerness for the big-band music and their ability to grasp the essence of it made me realize that today's generation has not been properly exposed to the big-band sound.
Readiness
Part of speech: noun
Definition: the state or degree of being ready
Example sentence: History offers no evidence for the proposition that the assignment of women to military combat jobs is the way to win wars, improve combat readiness, or promote national security.