Definite (adjective) or definitely (adverb) means certain, without a single doubt:

We have definite plans to move to New York.

(it is 100% certain that we will move there)

I'm definitely going to the party.

(it is 100% certain that I am going)

This $50 jacket is definitely overpriced. I saw the exact same jacket for $30 in another store.

(it is completely certain that $50 is too much)

The word definitively (adverb) or definitive (adjective) means that something decides an issue, or provides a clear and firm answer/solution to a particular matter:

The evidence from the DNA test definitively proved that Ryan was not the murderer.

The company had been in financial trouble for years, but its definitive end came when it declared bankruptcy in March.

Jumping Jacks

Chop Wood

If youve got an axe or even a sledgehammer youve got a terrific tool to burn 100 calories in 10 minutes. Medicine ball chops are simply gym versions of the real thing, and we all know the real deal is always better. Again, be sure to switch sides and swing with both arms to make sure you stay balanced. Chops are great for overall body and cardiovascular conditioning.