time slot vs slot

time slot and slot both are nouns.

Word	Noun	Adjective	Verb	Adverb
time slot	Yes	No	No	No
slot	Yes	No	Yes	No

As nouns, time slot and slot are synonyms defined as:

time slot (noun)	slot (noun)
a time assigned on a schedule or agenda	a small slit (as for inserting a coin or depositing mail)
	a slot machine that is used for gambling
	(computer) a socket in a microcomputer that will accept a plug-in circuit board
	a position in a grammatical linguistic construction in which a variety of alternative units are interchangeable
	the trail of an animal (especially a deer)
	a position in a hierarchy or organization
	a time assigned on a schedule or agenda

time slot (verb)	slot (verb)
	assign a time slot