23-letter words containing s, o, a, p, l
- sustainable development — supporting economy via renewable resources
- talk/speak of the devil — People say speak of the devil, or in British English talk of the devil, if someone they have just been talking about appears unexpectedly.
- the scottish parliament — the devolved national legislature of Scotland, located in Edinburgh
- to call a spade a spade — If you say that someone calls a spade a spade, you mean that they speak clearly and directly about things, even embarrassing or unpleasant things.
- to clap eyes on someone — To clap eyes on someone or something, or set or lay eyes on them, means to see them.
- to jump to a conclusion — If you say that someone jumps to a conclusion, you are critical of them because they decide too quickly that something is true, when they do not know all the facts.
- to keep your nose clean — If you keep your nose clean, you behave well and stay out of trouble.
- to play for high stakes — to gamble on something very important
- to wipe the slate clean — If you wipe the slate clean, you decide to forget previous mistakes, failures, or debts and to start again.
- transplantation antigen — a histocompatibility antigen identified by its effect on the rejection of transplanted cells or tissues.
- triple expansion engine — (formerly) a steam engine in which the steam is expanded in three stages in cylinders of increasing diameter to accommodate the increasing volume of the steam
- turn-and-slip indicator — bank-and-turn indicator.
- variable contrast paper — printing paper in which the contrast of the image is controlled by the color of the printing light.
- volumetric displacement — the volume of air per revolution that passes through a mechanical pump when the pressure at the intake and the exhaust is the same as that of the atmosphere
- voyageurs national park — a national park in N Minnesota. 343 sq. mi. (888 sq. km).