by+letter
81letter-perfect — adj AmE correct in every detail ▪ a letter perfect product …
82letter-size — adj AmE letter size paper is 8½ ↑inches wide and 11 inches long …
83letter bomb — letter ,bomb noun count a small bomb hidden inside a letter …
84letter of accreditation — letter of introduction, letter listing one s credentials …
85letter of sympathy — letter expressing one s sorrow for the grief of another person, letter of compassion …
86letter of the law — If people interpret laws and regulations strictly, ignoring the ideas behind them, they follow the letter of the law …
87letter — According to the Private Express Statutes, a message directed to a specific person or an address and recorded in or on a tangible object. Also a shortened way to refer to letter size mail …
88letter-size mail — A mail processing category of mailpieces, including cards, that do not exceed any of the dimensions for letter size mail (that is, 11 1/2 inches long, 6 1/8 inches high, 1/4 inch thick) …
89letter sorting machine — (LSM) A large mechanized machine that can sort letters into as many as 277 bins. Operators physically read the address and then manually enter an extraction code, via keyboard, based on their memory of the sort scheme loaded into the machine s… …
90letter tray — A flat cardboard or plastic container for sorted letter size mail that can hold several hundred letters. Various kinds and sizes of trays are used in place of sacks or pouches for transporting mail within and between major postal facilities.… …