ardency

Example:The intensity of their arguments was clear as they debated the issue.

Definition:The degree or amount of something; a measurable or immeasurable attribute

Example:His passion for the subject was evident in the depth of his knowledge and his travels.

Definition:A strong feeling or emotion, such as intense love or anger, or a strong liking or detestation for something, though without necessarily any strong emotional element

Example:The candidate's zeal for change was one of the main factors in her successful campaign.

Definition:Lively and wholehearted enthusiasm and dedication to a cause or activity, especially that of a religious or political nature

Example:Her enthusiasm for the project was so contagious that it inspired the whole team to work harder.

Definition:A lively and vigorous interest in and enjoyment of something