Is "complainant" the same as "complainer"?
In my point of view, "complainant" is the person who makes a formal complaint in court while "complainer" is just the person who makes a complaint.

Thank you in advance!

Question

Is "complainant" the same as "complainer"?
In my point of view, "complainant" is the person who makes a formal complaint in court while "complainer" is just the person who makes a complaint.

Thank you in advance!

Answer

You're right.  There is a difference.

A complainer is a person who complains in the familiar sense.  That is, a person who expresses dissatisfaction, pain or resentment.  A complainant is a legal term, and refers to a person who files a formal complaint or accusation in a court of law.

Answer

You are right! I give you 5*****