word choice - When to use & instead of "and"
Are there rules of usage when using the ampersand "&" instead of "and"? Are they completely interchangeable? The ampersand seems more casual, but I'm not sure. Answer There are very, very few acceptable uses of & in proper written English. Here are some of them: & is especially common when joining names to indicate a firm or a partnership, for example, a law firm: Baker & McKenzie Abercrombie & Fitch Crosby Stills Nash & Young In abbreviations, when abbreviating "and", & is often used: AT&T (American Telephone and Telegraph) P&L (profit and loss) R&D (research and development) One rare usage is on envelopes addressed to a couple: Mr. & Mrs. Jackson &c. is a rare and somewhat archaic looking abbreviation for etc. Other than that it is vanishingly rare to see & in formal written English, although of course in informal email, text messages, notes, and handwriting, anything goes.