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.
  A certified letter should be written just as any other business letter, but you should note above the name and address of the person to whom it is addressed Sent Certif â¦ ied Mail, Article No. *********** The Article Number should correspond to the Certified Mail Receipt form (PS Form 3800) from the USPS.n the Medical field, where liability is of great concern, sending a certified letter shows as proof, that you made an attempt on X date, to contact X person specified, and that X person received the letter. This way, if anyone asks HOW you can prove you contacted the person, you have a receipt showing the proof.