18-letter words containing i, r, t, a, o, n
- sustaining program — a radio or television program without a commercial sponsor.
- system-programming — a program, as an operating system, compiler, or utility program, that controls some aspect of the operation of a computer (opposed to application program).
- take out insurance — take out insurance against something
- teacher evaluation — the process of vetting teachers to maintain teaching standards
- tectorial membrane — membrane in the inner ear that covers the organ of Corti
- telford and wrekin — a unitary authority in W Central England, in Shropshire. Pop: 160 300 (2003 est). Area: 289 sq km (112 sq miles)
- temporal summation — the act or process of summing.
- tender loving care — considerate and kindly care, as of someone who is ill, upset, etc
- territorialization — to extend by adding new territory.
- tertiary education — education, following secondary education at a school, at a college or university
- the bird has flown — the person in question has fled or escaped
- the dark continent — a term for Africa when it was relatively unexplored
- the electronic age — the electronic age began when electronic equipment, including computers came into use
- the grand national — an annual steeplechase run at Aintree, Liverpool, since 1839
- the internationale — a revolutionary socialist hymn, first sung in 1871 in France
- the major rogation — April 25, observed by Christians as a day of solemn supplication for the harvest and marked by processions, special prayers, and blessing of the crops
- the north atlantic — the northern part of the Atlantic Ocean, especially the waters separating North America and Europe
- the sun also rises — a novel (1926) by Ernest Hemingway.
- the-dark-continent — Africa: so called, especially during the 19th century, because little was known about it.
- there you go again — Phrases such as there you go again are used to show annoyance at someone who is repeating something that has annoyed you in the past.
- thioarsenious acid — any of a group of hypothetical acids, H3AsS3, HAsS2, and H4As2S5, known only in the forms of their salts
- thorfinn karlsefni — 980–after 1007, Icelandic navigator, explorer, and leader of early colonizing expedition to Vinland, in North America.
- to a grinding halt — If you describe a bad situation as grinding, you mean it never gets better, changes, or ends.
- to bear witness to — If a person or thing bears witness to something, they show or say that it exists or happened.
- to cast aspersions — If you cast aspersions on someone or something, you suggest that they are not very good in some way.
- to scrape a living — If you say that someone scrapes a living or scratches a living, you mean that they manage to earn enough to live on, but it is very difficult. In American English, you say they scrape out a living or scratch out a living.
- to speak your mind — If you speak your mind, you say firmly and honestly what you think about a situation, even if this may offend or upset people.
- to-ing and fro-ing — If you say that there is a lot of to-ing and fro-ing, you mean that the same actions or movements or the same arguments are being repeated many times.
- traditional option — an option that once purchased cannot be resold
- traditional policy — a life assurance policy in which the policyholder's premiums are paid into a general fund and his or her investment benefits are calculated according to actuarial formulae
- traditional weapon — a weapon having ceremonial tribal significance, such as an assegai or knobkerrie
- traffic controller — a person whose job is to control the flow of air traffic
- transient response — A transient response of a circuit is a temporary change in the way that it behaves due to an external excitation, that will disappear with time.
- transit theodolite — a theodolite having a telescope that can be transited.
- transition element — any element in any of the series of elements with atomic numbers 21–29, 39–47, 57–79, and 89–107, that in a given inner orbital has less than a full quota of electrons.
- translation agency — an organization that provide people to translate speech or writing into a different language
- transmission brake — A transmission brake is a brake that operates on the transmission system of a vehicle rather than directly on the wheels.
- transmission shaft — a shaft that rotates transmitting motion from the engine to the differential gear
- transmogrification — to change in appearance or form, especially strangely or grotesquely; transform.
- transporter bridge — a bridge for carrying passengers and vehicles by means of a platform suspended from a trolley.
- transrectification — rectification occurring in one circuit as a result of the application of an alternating voltage to another circuit.
- transubstantiation — the changing of one substance into another.
- transverse section — cross section (def 1).
- treaty obligations — obligations or duties that must be carried out by a party as according to a treaty they have entered into
- treaty of waitangi — a treaty signed in 1840 by Māori chiefs and a representative of the British Government, providing the basis for the British annexation of New Zealand
- triangle of forces — a triangle whose sides represent the magnitudes and directions of three forces whose resultant is zero and which are therefore in equilibrium
- trickle irrigation — drip irrigation.
- tristan und isolde — a music drama (composed, 1857–59; première, 1865) by Richard Wagner.
- trobriand islander — a native or inhabitant of the Trobriand Islands of Papua New Guinea
- turbine ventilator — a ventilator, usually mounted on the roof of a building, deck of a ship, etc., having at its head a globular, vaned rotor that is rotated by the wind, conveying air through a duct to and from a chamber below.