Free acronyms and abbreviations finder and definitions - business, training, medical, military, technical, funny - acronyms, backronyms and abbreviations meanings.
London cockney rhyming slang words, expressions, meanings, translations, explanations and origins, and Australian rhyming slang expressions.
Generation X, Generation Y (Millennials), Baby-Boomers: a personality model of generational nicknames and societal groups.
SIC codes (standard industrial classifications - 2007, 2003, 1992).
Here are some free listings of commonly used demographics, lifestyle and geodemographical classifications.