The letter k looks simple, but its meaning changes dramatically depending on where it appears. In a text message, “k” ma

IST is a small abbreviation with a surprisingly large range of uses. Its meaning depends almost entirely on where it app

WM is the kind of shorthand people notice only after it has already done its job. Two letters can look almost empty on t

The small abbreviation “co.” appears in emails, business names, headlines, and casual notes, yet its meaning changes wit

The abbreviation “PL” appears in many parts of everyday life, but its meaning depends heavily on context. Two letters on