17-letter words containing c, h, i, e, f, o
- scientific theory — a coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation: the scientific theory of evolution.
- sign of the cross — a movement of the hand to indicate a cross, as from forehead to breast and left shoulder to right or, in the Eastern Orthodox Church, from right shoulder to left.
- significant other — Sociology. a person, as a parent or peer, who has great influence on one's behavior and self-esteem.
- sister of charity — a member of one of several congregations of sisters founded in 1634 by St. Vincent de Paul.
- south west africa — a former name of Namibia.
- south-west africa — a former name of Namibia.
- spaghettification — the theoretical stretching of an object as it encounters extreme differences in gravitational forces, especially those associated with a black hole.
- sulfonyl chloride — a colorless liquid, SO 2 Cl 2 , having a very pungent odor and corrosive to the skin and mucous membranes: used as a chlorinating or sulfonating agent.
- teaching software — computer software for use in providing online education
- technical offence — an action which is prohibited by law, but for which no blame can be attached to the person who commits it
- the bag of tricks — every device; everything
- the carboniferous — the Carboniferous period or rock system
- the confederation — the original 13 states of the United States of America constituted under the Articles of Confederation and superseded by the more formal union established in 1789
- the facts of life — the details of sexual behaviour and reproduction, esp as told to children
- the olympic flame — the flame that is symbolically lit at the site of the ancient Olympics in Olympia and transported by relay to the place where the Olympic Games are to be held. It is used to ignite a fire in a cauldron that will burn throughout the Games
- the south pacific — the part of the Pacific Ocean to the south of the equator
- willow flycatcher — a North American flycatcher, Empidonax alnorum, of alder thickets and other moist areas, that has greenish-brown upper parts and whitish underparts and is almost indistinguishable except by voice from E. traillii (willow flycatcher)