Three words
Inflammable
Flamabble
Combustable
The first is very easy to ignite (Gasoline Propane vapor)
Color code for storage is RED
The next can be set aflame but not as easily. Color code used to be Green but I heard they changed it to something else (Yellow I think But I don't use it so...) Diesel fuel.
The third (Think wood) is harder still to burn but can burn,
NOTE: many products are mislabeled to the point where I looked up the definitions before posting this ... I know Gasoline is more dangerous than Diesel in terms of ignition and diesel more than wood (less it is soaked with something higher up the flammability chart) But It's been a long time since I paid attention to the definitions of the words.
Or rather it was a long time till I started this post :)
