21-letter words containing o, n, f

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
surface of projection — the surface upon which an image or a set of points is projected.
surface of revolution — a surface formed by revolving a plane curve about a given line.
surface-to-underwater — (of a missile, message, etc.) traveling from the surface of the earth to a target underwater.
sweet spirit of nitre — ethyl nitrite spirit.
symphonie fantastique — a programmatic symphony (1830–31) in five movements by Hector Berlioz.
synchronized shifting — gear shifting in which the gears to be meshed are made to rotate at the same speed.
take off one's hat to — a shaped covering for the head, usually with a crown and brim, especially for wear outdoors.
take one's (own) life — to commit suicide
take one's finger out — stop delaying or procrastinating
take one's hat off to — to salute or congratulate
take/come into effect — If a law or policy takes effect or comes into effect at a particular time, it officially begins to apply or be valid from that time. If it remains in effect, it still applies or is still valid.
teacher certification — official qualifications for educators
tetrabromofluorescein — eosin (def 1).
the acting profession — actors considered as a group
the battle of britain — from August to October 1940, the prolonged bombing of S England by the German Luftwaffe and the successful resistance by the RAF Fighter Command, which put an end to the German plan of invading Britain
the best of the bunch — If you say someone or something is the best of the bunch or the pick of the bunch, you mean they are the best of a group of people or things.
the birth of a nation — an American film (1915), directed by D. W. Griffith.
the break of day/dawn — The break of day or the break of dawn is the time when it begins to grow light after the night.
the end of one's rope — the end of one's endurance, resources, etc.
the microsoft network — (networking) (MSN) Microsoft's ISP and online content service, launched in October 1996. Not to be confused with Microsoft Networking. MSN was originally based on custom software and protocols, however Microsoft saw the error of their ways and adopted Internet standards. MSN now provides standard WWW and email facilities, albeit with Microsoft's Internet Explorer web-browser and the Outlook Express email software. The service also provides "Community Services" including newsgroups, forums, and chat.
the middle of nowhere — remote place
the oldest profession — prostitution
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
the slough of despond — a state of extreme despondency, depression or degradation
the stationery office — (in the UK) the company that supplies the civil service with all its office supplies, machinery, printing and binding, etc
theater of operations — the part of the theater of war, including a combat zone and a communications zone, that is engaged in military operations and their support.
thin end of the wedge — anything unimportant in itself that implies the start of something much larger
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 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 fall into the trap — If someone falls into the trap of doing something, they think or behave in a way which is not wise or sensible.
to feather one's nest — If you say that someone is feathering their nest, you mean that they are getting a lot of money out of something, so that they can lead a comfortable life.
to fly in the face of — If an action or belief flies in the face of accepted ideas or rules, it seems to completely oppose or contradict them.
to fly off the handle — If you fly off the handle, you suddenly and completely lose your temper.
to have green fingers — If someone has green fingers, they are very good at gardening and their plants grow well.
to lay down your life — If someone lays down their life for another person, they die so that the other person can live.
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 play second fiddle — If you play second fiddle to someone, your position is less important than theirs in something that you are doing together.
to put you in mind of — If something puts you in mind of something else, it reminds you of it because it is similar to it or is associated with it.
to risk life and limb — If someone risks life and limb, they do something very dangerous that may cause them to die or be seriously injured.
to take your mind off — If something takes your mind off a problem or unpleasant situation, it helps you to forget about it for a while.
to think better of it — If you intend to do something and then think better of it, you decide not to do it because you realize it would not be sensible.
topgallant forecastle — a partial weather deck on top of a forecastle superstructure; forecastle deck.
traffic control tower — an elevated structure for the visual observation and control of the air and ground traffic at an airport
transformational rule — Linguistics. a rule of transformational grammar that relates two phrase markers in the course of a derivation from the deep to the surface syntactic representation of a sentence, as by reordering, inserting, or deleting elements; a rule that converts deep structures into surface structures.
tumor necrosis factor — a protein, produced in humans and other animals, that is destructive to cells showing abnormally rapid growth: identical with cachectin. Abbreviation: TNF.
uniform business rate — a local tax in the UK paid by businesses, based on a local valuation of their premises and a rate fixed by central government that applies throughout the country
uniform resource name — (web) (URN, previously Uniform/Universal Resource Number) 1. Any URI which is not a URL. 2. A particular scheme which is currently (1991-4) under development by the IETF, which should provide for the resolution using Internet protocols of names which have a greater persistence than that currently associated with Internet host names or organisations (as used in URLs). Uniform Resource Names will be URI schemes that improve on URLs in reliability over time, including authenticity, replication, and high availability. When defined, a URN in sense 1 will be an example of a URN in sense 2.
union of south africa — former name for South Africa, Republic of.

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