Registration
Part of speech: noun
Definition: the act of signing up or registering for something that which registers or makes something official, e.g. the form or paper that registers alignment, e.g. of colors or other elements in a printing process the location where guests register, especially with a hotel.
Example sentence: I vividly remember the summer of 1964 with its voter registration drives, boiling racial tensions, and the erupting awareness of the cruelty of racism. I was never the same after that summer.
Readjustment
Part of speech: noun
Definition: a second, or subsequent adjustment