Fall in and Pull in

Fall in verb - Break down, literally or metaphorically.

Pull in and fall in are semantically related. in come to a destination topic. In some cases you can use "Pull in" instead a verb "Fall in".

Pull in verb - To keep from exceeding a desirable degree or level (as of expression).

Fall in and pull in are semantically related. Sometimes you can use "Fall in" instead a verb "Pull in".