21-letter words containing s, a, g, e, c, o
- satisficing behaviour — the form of behaviour demonstrated by firms who seek satisfactory profits and satisfactory growth rather than maximum profits
- saving your reverence — a form of apology for using an obscene or taboo expression
- schlieren photography — a type of photography which records schlieren
- seating accommodation — the provision of seats for people in a room, building, etc
- secure hash algorithm —
- short message service — (messaging) (SMS) A message service offered by the GSM digital mobile telephone system. Using SMS, a short alphanumeric message (160 alphanumeric characters) can be sent to a mobile phone to be displayed there, much like in an alphanumeric pager system. The message is buffered by the GSM network until the phone becomes active.
- simple actor language — (language) (SAL) A minimal actor language, used for teaching in:
- siren call/siren song — A siren call or siren song is the appeal that something has although it is harmful or dangerous.
- strategic air command — a U.S. Air Force command charged with intercontinental air strikes, especially nuclear attacks.
- suction and curettage — a technique involving extraction of the fetus through a suction tube, used to perform abortions during the early stages of pregnancy.
- supergranulation cell — one of a number of large convection cells in the photosphere and chromosphere of the sun, each having a diameter of 10,000–20,000 miles (16,000–32,000 km) and lasting longer than a day.
- surface friction drag — the part of the drag on a body moving through a fluid that is dependent on the nature of the surface of the body
- the acting profession — actors considered as a group
- the royal scots greys — (formerly) a British cavalry regiment, the Second Dragoons
- the shipping forecast — a radio broadcast made by the BBC of weather reports and forecasts for the seas around the British Isles
- threshold wage policy — a policy whereby wages are increased in accordance with inflation
- to change the subject — When someone involved in a conversation changes the subject, they start talking about something else, often because the previous subject was embarrassing.
- to get back to basics — to revert to a simpler method, eg of living or doing business
- topgallant forecastle — a partial weather deck on top of a forecastle superstructure; forecastle deck.
- total recoverable gas — Total recoverable gas is the amount of gas which is still left in the ground in gas fields that have already been worked.
- trades union congress — The Trades Union Congress in Britain is the same as the TUC.
- what price something? — what are the chances of something happening now?
- youth training scheme — (formerly, in Britain) a scheme, run by the Training Agency, to provide vocational training for unemployed 16–17-year-olds