This list contains acronyms, initialisms, and pseudo-blends that begin with the letter W.For the purposes of this list:acronym = an abbreviation pronounced as a series of constituent letters, e.g., SARS = severe acute respiratory syndromeinitialism = an abbreviation pronounced wholly or partly using the names of its constituent letters, e.g., CD = compact discpseudo-blend = an abbreviation whose extra or omitted letters means that it cannot stand as a true acronym, initialism, or portmanteau (a word formed by combining two or more words). Add new entries here or in the sub-pagesPlease add your own entries, in this page or in the appropriate sub-page. Use a quasi-dictionary order, with lowercase treated the same as uppercase and ignoring non-alphanumeric characters (hyphens and such). This means that only alphanumeric characters have any significance in determining order, and that lowercase letters occupy the same ordering position as uppercase (in tie-breaker cases, list lower case first). For example: Ka appears before KA. (This differs from a strict ASCII ordering)(Main list of acronyms and initialisms)