Those who object to “PIN number” on the grounds that the N in “PIN”stands for “number” in the phrase “personal identification number” arequite right, but it may be difficult to get people to say anything else.“PIN” was invented to meet the objection that a “password” consisting ofnothing but numbers is not a word. Pronouncing each letter of theacronym as “P-I-N” blunts its efficiency. Saying just “PIN” reminds usof another common English word, though few people are likely to thinkwhen they are told to “enter PIN” that they should shove a steel pininto the terminal they are operating. In writing, anyway, PIN isunambiguous and should be used without the redundant “number.”The same goes for “VIN number”; “VIN” stands for “Vehicle IdentificationNumber.” And “UPC code” is redundant because “UPC’stands for “UniversalProduct Code.”
Facebook
Twitter
Google +