1. An explosive material that is used for mining and for blasting to remove objects which are no longer needed or that are in the way of some kind of development: Dynamite is said to be safer than nitroglycerin, because it is less liable to explode from moderate shocks or from spontaneous decomposition.

The engineers were skilled in the use of dynamite which they used to implode a building that was dangerously damaged.

2. An informal use meaning something that is very exciting or wonderful: The increase in hip replacements has been described as dynamite because they are highly effective in relieving pain and restoring better mobility.
3. Something that can be exceptionally dangerous: The allegations made regarding the political candidate are political dynamite.

A slang term meaning superb, outstanding, or super: Debora and Janine went to what they thought was a dynamite concert performed by the school orchestra and choir.

To blow up or to blast something open or to pieces: The bank robbers dynamited the door to the safe- deposit boxes so they could ransack the valuables in them.

The anti-government rebels were dynamiting the subway tracks in the city.