18-letter words containing f, i, t, y
- thermal efficiency — the ratio of the work output of a heat engine to the heat input expressed in the same units of energy.
- to play favourites — to display favouritism
- treasury of merits — the superabundant store of merits and satisfactions, comprising those of Christ, the Virgin Mary, and the saints.
- treaty of rijswijk — a treaty signed at Rijswijk in the Netherlands in 1697, ending the War of the Grand Alliance
- 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
- university faculty — a division within a university comprising one subject area, or a number of related subject areas
- vitamin deficiency — a lack of a vitamin or vitamins needed for good health
- water of hydration — the portion of a hydrate that is represented as, or can be expelled as, water: now usually regarded as being in true molecular combination with the other atoms of the compound, and not existing in the compound as water.
- wildlife sanctuary — an area where wild animals and plants are protected
- witch hazel family — the plant family Hamamelidaceae, characterized by trees and shrubs having alternate, simple leaves, flowers in clusters or heads, and fruit in the form of a double-beaked woody capsule, and including the sweet gum, witch alder, and witch hazel.
- with flying colors — with flying colors, with an overwhelming victory, triumph, or success: He passed the test with flying colors.