17-letter words containing e, f, u, s
- the carboniferous — the Carboniferous period or rock system
- the life and soul — a person regarded as the main source of merriment and liveliness
- the sound of mull — the water that separates the island of Mull from the mainland of Scotland
- the south pacific — the part of the Pacific Ocean to the south of the equator
- theory of numbers — number theory.
- thermal diffusion — the separation of constituents, often isotopes, of a fluid under the influence of a temperature gradient.
- thistle butterfly — any nymphalid butterfly of the genus Vanessa, as the red admiral or painted lady.
- thuringian forest — a forested mountain region in central Germany: a resort area.
- to feel your oats — to feel exuberant or high-spirited
- to show your face — If you show your face somewhere, you go there and see people, although you are not welcome, are rather unwilling to go, or have not been there for some time.
- transfer function — The transfer function of a circuit is the ratio of the response to the input.
- troilus butterfly — spicebush swallowtail.
- turn of the screw — a short novel (1898) by Henry James.
- twenty four seven — continually; constantly: They're together 24/7.
- twenty-four hours — the time taken by the Earth to make a complete rotation on its axis; a whole day
- twenty-four seven — continually; constantly: They're together 24/7.
- twenty-four-seven — continually; constantly: They're together 24/7.
- unclassified road — a road that has not been given a grade because it is of a basic standard
- uncomfortableness — causing discomfort or distress; painful; irritating.
- under the sign of — during that portion of the year when the sun is passing through and thus subject to the influence of (a specified sign of the zodiac)
- unity of interest — the equal interest in property held by joint tenants
- unlawful assembly — a meeting of three or more people with the intent of carrying out any unlawful purpose
- unofficial strike — a strike that is not approved by the strikers' trade union
- unprofessionalism — not professional; not pertaining to or characteristic of a profession.
- unselfconsciously — in an unselfconscious manner
- walleye surfperch — a common black and silvery surfperch (Hyperprosopon argenteum) found off the coast of California
- year of confusion — (in ancient Rome) the year of 445 days preceding the introduction, in 46 b.c., of the Julian calendar: lengthened to compensate for the cumulative errors of the Roman calendar.