Is Intensive a Real Word?

Intensive is an adjective, meaning "highly concentrated" or "exhaustive," and intents is a noun, meaning "purposes." They're not exactly interchangeable.

What does intensive use mean?

1 involving the maximum use of land, time, or some other resource.

What is the difference between intense and intensive?

Intense means of severe strength or force; having strong feelings. An intense course, then, would be an extremely tough course, such as advanced nuclear science. Intensive means focused on one subject or area for a short time; extremely thorough.