lighter vs priming

lighter and priming both are nouns.

Word	Noun	Adjective	Verb	Adverb
lighter	Yes	No	Yes	No
priming	Yes	No	No	No

As nouns, priming is a hyponym of lighter; that is, priming is a word with a more specific, narrower meaning than lighter:

lighter (noun)	priming (noun)
a device for lighting or igniting fuel or charges or fires	the act of making something ready
a flatbottom boat for carrying heavy loads (especially on canals)	any igniter that is used to initiate the burning of a propellant
a substance used to ignite or kindle a fire	the first or preliminary coat of paint or size applied to a surface

lighter (verb)	priming (verb)
transport in a flatbottom boat