Plegometer : plego METER (ple gomâ e ter) n. An instrument for measuring and recording the force of blows 13. Speedometer : speedo METER (spe domâ et er) n.
Best Answer: A certified letter is sent by a person or a business when they want to mail important information and be sure that it was received. It's not usually a good thing. Collection agencies send them, people involved in legal cases send them, etc... If you won a sweepstakes you would get them.
Certified Mail can be sent to a P.O. Box. When the Certified Mail arrives at the delivery Post Office, the letter carrier will place a delivery notification inside the P.O. Box that instructs the person to present the delivery slip to the window clerk. After signing the delivery receipt, the letter is given to the recipient.