Meaning

• The act of signing up or registering for something.

  "Complete the registration process."

• That which registers or makes something official, e.g. the form or paper that registers.

  "Did you submit your car registration yet?"

• Alignment, e.g. of colors or other elements in a printing process.

• The location where guests register, especially with a hotel.

  "The elevators are just past registration."

• The art of selecting and combining the stops or registers of an organ.