25-letter words containing h, e, l, n
- under the watchful eye of — If you do something under the watchful eye of someone who has authority over you, they watch you carefully to make sure there are no problems.
- undisputed world champion — a boxer who holds the World Boxing Association, the World Boxing Council, the World Boxing Organization, and the International Boxing Federation world championship titles simultaneously
- vertical redundancy check — (storage, communications) (VRC) An error checking method performed on one 8-bit ASCII character, where the 8th bit is used as the parity bit. The resulting parity bit is constructed by XORing the word. The result is a "1" if there is an odd number of 1s, and a "0" if there is an even number of 1s in the word. This method is unreliable because if an odd number of bits are distorted, the check will not detect the error. The Longitudinal Redundancy Check is an improvement.
- vienna development method — (programming, specification) (VDM) A program development method based on formal specification using the Vienna Development Method Specification Language (VDM-SL).
- war of the grand alliance — the war (1689–97) in which England, the Netherlands, Spain, Sweden, and the Holy Roman Empire in league with Bavaria, Brandenburg, Savoy, and the Palatinate opposed France.
- white sands missile range — a U.S. Army military testing ground for rockets and guided missiles in SW New Mexico, W of Alamogordo.
- world council of churches — an ecumenical organization formed in 1948 in Amsterdam, The Netherlands, comprising more than 160 Protestant and Eastern churches in over 48 countries, for the purpose of cooperative, coordinated action in theological, ecclesiastical, and secular matters.
- world health organization — an agency of the United Nations, established in 1948, concerned with improving the health of the world's people and preventing or controlling communicable diseases on a worldwide basis through various technical projects and programs. Abbreviation: WHO.
- worth your weight in gold — If you say that someone or something is worth their weight in gold, you are emphasizing that they are so useful, helpful, or valuable that you feel you could not manage without them.