21-letter words containing i, g, n, o

sing for one's supper — to obtain something by performing a service
single spanish burton — a tackle having a runner as well as the fall supporting the load, giving a mechanical advantage of three, neglecting friction.
siren call/siren song — A siren call or siren song is the appeal that something has although it is harmful or dangerous.
snap one's fingers at — any of the terminal members of the hand, especially one other than the thumb.
social anthropologist — an anthropologist who deals with cultural and social phenomena such as kinship systems or beliefs, esp of nonliterate peoples
someone's strong suit — a person's greatest talent, most conspicuous character trait, etc.
something for nothing — If you say that someone is getting something for nothing, you disapprove of the fact that they are getting what they want without doing or giving anything in return.
sovereign wealth fund — an investment fund created using the financial assets of a national government
spark ignition engine — A spark ignition engine is an engine running on the Otto cycle.
spin angular momentum — to make (yarn) by drawing out, twisting, and winding fibers: Pioneer women spun yarn on spinning wheels.
strategic air command — a U.S. Air Force command charged with intercontinental air strikes, especially nuclear attacks.
strike the right note — to behave appropriately
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
synchronized shifting — gear shifting in which the gears to be meshed are made to rotate at the same speed.
synchronized swimming — a sport growing out of water ballet in which swimmers, in solo, duet, and team efforts, complete various required figures by performing motions in relatively stationary positions, along with a freestyle competition, with the contestants synchronizing movements to music and being judged for body position, control, and the degree of difficulty of the moves.
take one's finger out — stop delaying or procrastinating
tape operating system — (operating system) (TOS) An IBM operating system for System 360, used in the early days around 1965 to support the IBM 360 model 30 et al. TOS was a predecessor to IBM's Disk Operating System. TOS died out really early as disks such as the 2311 and 2314 became common with the IBM 360 whereas thet had been a real luxury on the IBM 7090.
teleological argument — the argument purporting to prove the existence of God from empirical facts, the premise being that the universe shows evidence of order and hence design
television evangelist — a Christian minister who devotes time to preaching on television
the acting profession — actors considered as a group
the icing on the cake — If you describe something as the icing on the cake, you mean that it makes a good thing even better, but it is not essential.
the moral high ground — If you say that someone has taken the moral high ground, you mean that they consider that their policies and actions are morally superior to the policies and actions of their rivals.
the origin of species — (On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life) a treatise (1859) by Charles Darwin setting forth his theory of evolution.
the shipping forecast — a radio broadcast made by the BBC of weather reports and forecasts for the seas around the British Isles
there's nothing to it — If you say 'There's nothing to it', 'There's not much to it', or 'That's all there is to it', you are emphasizing how simple you think something is.
thin end of the wedge — anything unimportant in itself that implies the start of something much larger
threatening behaviour — intimidation or intentional behaviour that causes another person to fear injury or harm
tide-generating force — the difference between the force of gravity exerted by the moon or the sun on a particle of water in the ocean and that exerted on an equal mass of matter at the centre of the earth. The lunar tide-generating forces are about 2.2 times greater than are the solar ones
to be arrayed against — to be opposed to
to cross your fingers — If you cross your fingers, you put one finger on top of another and hope for good luck. If you say that someone is keeping their fingers crossed, you mean they are hoping for good luck.
to dig one's heels in — If you dig your heels in or dig in your heels, you refuse to do something such as change your opinions or plans, especially when someone is trying very hard to make you do so.
to get into high gear — if people or an activity go into high gear, moves into high gear, etc, people do what they were doing more intensely, or the activity becomes more intense
to have green fingers — If someone has green fingers, they are very good at gardening and their plants grow well.
to kill a mockingbird — a novel (1960) by Harper Lee.
to lay something bare — If you lay something bare, you uncover it completely so that it can then be seen.
to my way of thinking — You add to my way of thinking to a statement in order to indicate that you are giving your opinion.
to stick to your guns — If you stick to your guns, you continue to have your own opinion about something even though other people are trying to tell you that you are wrong.
to take the long view — If you take the long view, you consider what is likely to happen in the future over a long period, rather than thinking only about things that are going to happen soon.
topological invariant — a property of a topological space that is a property of every space related to the given space by a homeomorphism.
trades union congress — The Trades Union Congress in Britain is the same as the TUC.
transport segregation — Transport segregation is when particles from a mixture separate because the mixture vibrates while it is being moved.
traveling salesperson — a representative of a business firm who travels in an assigned territory soliciting orders for a company's services.
triangulation station — a point used in triangulation as a basis for making maps. Triangulation stations are marked in a number of ways, such as by a tapering stone pillar on a hilltop
venus's looking glass — a purple-flowered campanulaceous plant, Legousia hybrida, of Europe, W Asia, and N Africa
vladivostok agreement — a preliminary arms control accord concluded by Soviet leader Leonid Brezhnev and U.S. President Gerald Ford in Vladivostok, U.S.S.R., in December 1974.
washington's birthday — February 22, formerly observed as a legal holiday in most states of the U.S. in honor of the birth of George Washington.
weinberg-salam theory — electroweak theory.
well-ordering theorem — the theorem of set theory that every set can be made a well-ordered set.

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