Subjects tell the listener and the reader whom or what the sentence is about. The subject is that part of a sentence which names a person, thing, or idea. e.g. Every complete subject contains a simple subject. The simple subject, which is a noun or pronoun, is the most important word in the complete subject.
The USPS considers a postcard to be any single rectangular piece of paper that is at least 3 1/2 inches high by 5 inches long by 0.007 inch thick' and no more than 4-1/4 inches high by 6 inches long by 0.016 inches thick.. The post office considers all papers outside of these dimensions to be letters.
Size & Weight Requirements. 1  Postcards Postcards must be rectangular to qualify for First-Class MailÂ® prices. 2  Envelopes Standard Sized Envelopes Envelopes must be rectangular to qualify for letter prices. 3  Large Envelopes Large envelopes must be rectangular to qualify for flat pricing. Large envelopes that exceed size requirements of a letter will be charged package prices. Packages Packages can be sent using Priority Mail ExpressÂ®, Priority MailÂ®, First-Class MailÂ® Parcels, USPS Retail Groundâ¢, and Package Services. Contents must not weigh more than 70 lbs. Lower weight limits may apply. Girth is the distance around the thickest part of the package. In most cases, the maximum combined length and girth is 108 inches. If larger, youâll need to take it to a Post Officeâ¢ and ship with USPS Retail Ground service. Measuring Package Girth