Do Liquid flammables ignite more easily than do liquid combustibles.?

In common usage flammable liquids are the same as combustible liquids in terms of their ability to catch fire.

However, in the technical usage of hazardous materials transportation and of fire prevention, a combustible liquid has a higher flash point than a flammable liquid and is therefore less easily ignited.

So, yes, flammable liquids ignite more easily than do combustible liquids.