I.
noun
Slot is used after these nouns: ↑ card , ↑ mail , ↑ memory
II.
verb
ADVERB
▪ easily , neatly , simply
▪ together
▪
The panels ~ together to make a box.
▪ back
▪
He has slotted back into the role of being a second-in-command.
PREPOSITION
▪ in , into
▪
He slotted the magazines neatly into the rack.
PHRASES
▪ ~ (sth) into place
▪
All the pieces of the puzzle now slotted into place.