roll out vs cog

roll out and cog both are nouns.

Word	Noun	Adjective	Verb	Adverb
roll out	Yes	No	Yes	No
cog	Yes	No	Yes	No

As verbs, cog is a hyponym of roll out; that is, cog is a word with a more specific, narrower meaning than roll out:

Other hyponyms of roll out include mill.

roll out (noun)	cog (noun)
the act of officially distributing a new product or service to the public	tooth on the rim of gear wheel
	a subordinate who performs an important but routine function

roll out (verb)	cog (verb)
flatten or spread with a roller	join pieces of wood with cogs
straighten by unrolling	roll steel ingots
to distribute systematically or strategically
officially distribute a new product or service to the public