Clock in and Fall in

Clock in verb - Register one's arrival at work.

Fall in and clock in are semantically related in advance topic. In some cases you can use "Fall in" instead a verb "Clock in", when it comes to topics like come to a destination.

Fall in verb - Break down, literally or metaphorically.

Clock in and fall in are semantically related in advance topic. Sometimes you can use "Clock in" instead a verb "Fall in", if it concerns topics such as come to a destination.