23-letter words containing e, d, i, f, c
- rate-of-climb indicator — a flight instrument that indicates the rate of climb or descent of an aircraft.
- refuse disposal service — a place or facility where rubbish and waste can be disposed
- right, left, and centre — on all sides; from every direction
- scientific data systems — (company) (SDS) The company that produced the SDS 940 (later renamed XDS 940). Around 1968 Xerox bought out SDS and renamed the SDS machines to XDS.
- state-certified midwife — a midwife with a recognized qualification
- the chamber of deputies — the lower legislative assembly in some parliaments
- track and field athlete — a sportsperson who participates in events that involve running, sprinting, throwing, jumping and walking
- transcendental function — a function that is not an algebraic function.
- ulster defence regiment — a former reserve regiment of the British Army based in Northern Ireland
- uniform commercial code — a codification of commercial laws designed to provide uniformity among the states
- united church of canada — the largest Protestant denomination in Canada, formed in the 1920s by incorporating some Presbyterians and most Methodists
- united church of christ — an American Protestant denomination formed in 1957 by a union of the Evangelical and Reformed churches and the Congregational Christian churches.
- united states air force — the permanent or regular military air force of the United States, established in 1947 as a separate service under the authority of the Department of Defense: a branch of the U.S. Army before 1947. Abbreviation: USAF.
- wordperfect corporation — (company) The original developers of the WordPerfect word processor and a variety of other applications for personal computers. WordPerfect was founded in Provo, Utah, USA in 1979 by Alan Ashton and Bruce Bastion as "Satellite Software International". The company name was changed to Wordperfect Corporation in 1986. The company was bought by Novell, Inc. in 1994, who then sold it to Corel Corporation in 1996.