12-letter words containing f, l, s
- thousandfold — having a thousand elements or parts.
- thrust fault — a low-angle reverse fault produced in rocks subjected to thrust.
- thunderflash — a pyrotechnic device which is noisy, but not dangerous, and which is used in military exercises
- to hold fast — If you hold something fast, you hold it tightly and firmly. If something is stuck fast, it is stuck very firmly and cannot move.
- to lose face — If you lose face, you do something which makes you appear weak and makes people respect or admire you less. If you do something in order to save face, you do it in order to avoid appearing weak and losing people's respect or admiration.
- to play safe — If you play safe or play it safe, you do not take any risks.
- tonic sol-fa — a system of singing characterized by emphasis upon tonality or key relationship, in which tones are indicated by the initial letters of the syllables of the sol-fa system rather than by conventional staff notation.
- trace fossil — a fossilized track, trail, burrow, boring, or other structure in sedimentary rock that records the presence or behavior of the organism that made it.
- trans female — a person who was born male but whose gender identity is female.
- transferable — to convey or remove from one place, person, etc., to another: He transferred the package from one hand to the other.
- treble staff — a staff, bearing a treble clef.
- trustfulness — full of trust; free of distrust, suspicion, or the like; confiding: a trustful friend.
- truthfulness — telling the truth, especially habitually: a truthful person.
- tubuliferous — bearing or made up of tubules.
- ultraleftist — ultraleft.
- un-stressful — full of stress or tension: the stressful days before a war.
- unclassified — not assigned to a class or category; not arranged according to characteristics: Reported instances fall into two main types, with a few unclassified anomalies.
- unconfusedly — in an unconfused manner
- undefensible — capable of being defended against assault or injury: The troops were bivouacked in a defensible position.
- unfossilized — not fossilized
- unremorseful — full of remorse.
- unrespectful — full of, characterized by, or showing politeness or deference: a respectful reply.
- unsimplified — to make less complex or complicated; make plainer or easier: to simplify a problem.
- unsolidified — to unite firmly or consolidate.
- unsuccessful — not achieving or not attended with success: an unsuccessful person; an unsuccessful venture.
- unsufferable — insufferable; intolerable
- unusefulness — lack of usefulness; uselessness
- unworshipful — not worshipful; not showing reverence or admiration
- vacuum flask — A vacuum flask is a container which is used to keep hot drinks hot or cold drinks cold. It has two thin silvery glass walls with a vacuum between them.
- vengefulness — desiring or seeking vengeance; vindictive: a vengeful attitude.
- viruliferous — carrying a virus
- visual field — field of vision.
- vociferously — crying out noisily; clamorous.
- walking fish — any of various fishes able to survive and move about for short periods of time on land, as the mudskipper or climbing perch.
- wastefulness — given to or characterized by useless consumption or expenditure: wasteful methods; a wasteful way of life.
- watchfulness — vigilant or alert; closely observant: The sentry remained watchful throughout the night.
- well-staffed — a group of persons, as employees, charged with carrying out the work of an establishment or executing some undertaking.
- west mifflin — a city in W Pennsylvania, on the Monongahela River.
- west suffolk — a former administrative division of Suffolk, in E England.
- wethersfield — a town in central Connecticut.
- wineglassful — the capacity of a wineglass, typically containing four to six fluid ounces.
- wolf whistle — a wolf call made by whistling, often characterized by two sliding sounds, a peal up to a higher note and then one up to a lower note and down.
- wolf-whistle — If someone wolf-whistles, they make a whistling sound with a short rising note and a longer falling note. Some men wolf-whistle at a woman to show that they think she is attractive, and some women find this offensive.
- world's fair — a large international exposition with exhibitions of arts, crafts, industrial and agricultural products, scientific achievements, etc.
- world-famous — famous throughout the world: a world-famous film.
- worshipfully — In a worshipful manner; reverentially.
- worst of all — You say worst of all to indicate that what you are about to mention is the most unpleasant or has the most disadvantages out of all the things you are mentioning.
- wrathfulness — The quality of being wrathful; wrath.
- wrongfulness — unjust or unfair: a wrongful act; a wrongful charge.
- youthfulness — characterized by youth; young.