20-letter words containing b, u, n, d, l, e
- twiddle one's thumbs — to turn about or play with lightly or idly, especially with the fingers; twirl.
- under/below strength — If an army or team is under strength or below strength, it does not have all the members that it needs or usually has.
- undistributed middle — Logic. a middle term of a syllogism that does not refer to its entire class in the major premise or minor premise, with the result that the syllogism is not valid.
- united arab republic — a name given the union of Egypt and Syria from 1958 to 1961; after that, the official name of Egypt alone until 1971. Abbreviation: U.A.R.
- wardrobe malfunction — an embarrassing situation caused by the clothes a person is wearing
- wilson cloud chamber — cloud chamber.