allot vs roll out

allot is not a noun while roll out is a noun.

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

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

Other hyponyms of allot include allot, assign, portion, reallot, deal, apply, give.

allot (noun)	roll out (noun)
	the act of officially distributing a new product or service to the public

allot (verb)	roll out (verb)
allow to have	flatten or spread with a roller
give out	straighten by unrolling
administer or bestow, as in small portions	to distribute systematically or strategically
	officially distribute a new product or service to the public