1. (noun)slot a position in a grammatical linguistic construction in which a variety of alternative units are interchangeable "he developed a version of slot grammar"
2. (noun)slot a smallslit (as for inserting a coin or depositing mail) "he put a quarter in the slot"
3. (noun)time slot, slot a time assigned on a schedule or agenda "the TV program has a new time slot"; "an aircraft landing slot"
4. (noun)slot a position in a hierarchy or organization "Bob Dylan occupied the top slot for several weeks"; "she beat some tough competition for the number one slot"
5. (noun)slot the trail of an animal (especially a deer) "he followed the deer's slot over the soft turf to the edge of the trees"