Meaning: An illustration or photograph facing the title page of a book.

Part of speech: noun

Example: The frontispiece of the novel featured a beautiful landscape.

Category: Arts › Literature

Synonyms:

• illustration
• plate

Meaning: An acronym for a specific organization or system.

Part of speech: noun

Example: The FRS is known for its research in renewable energy.

Category: Science › Research

Meaning: The realization or achievement of something desired.

Part of speech: noun

Example: Her hard work finally came to fruition.

Category: Personal Development

Synonyms:

• realization
• achievement

Meaning: A vibrant pinkish-purple color or a type of flowering plant.

Part of speech: noun

Example: She painted her room fuchsia.

Category: Arts › Colors

Synonyms:

• magenta
• pink

Meaning: A person who is old-fashioned or overly concerned with rules.

Part of speech: noun

Example: He's such a fuddy-duddy about modern music.

Category: Social

Synonyms:

• stick-in-the-mud
• prude

Meaning: To avoid making a clear decision or to manipulate facts.

Part of speech: verb

Example: He tried to fudge the numbers in the report.

Category: Business › Ethics

Synonyms:

• manipulate
• evade

Meaning: A rod that contains nuclear fuel for reactors.

Part of speech: noun

Example: The fuel rod is essential for the reactor's operation.

Category: Science › Nuclear Energy

Synonyms:

• nuclear fuel
• reactor rod

Meaning: Relating to a fugue, a type of musical composition.

Part of speech: adjective

Example: The fugal section of the piece was complex and beautiful.

Category: Arts › Music

Synonyms:

• musical
• compositional

Meaning: A musical composition in which a theme is introduced and then developed in interwoven parts.

Part of speech: noun

Example: Bach's fugue is a masterpiece of counterpoint.

Category: Arts › Music

Synonyms:

• composition
• musical form

Meaning: The point on which a lever pivots.

Part of speech: noun

Example: The fulcrum allows the lever to lift heavy objects.

Category: Science › Physics

Synonyms:

• pivot
• support

Meaning: a senior academic rank at a university

Part of speech: noun

Example: She was promoted to full professor after many years.

Category: Education › Academia

Synonyms:

• senior professor
• tenured professor

Meaning: having pure or complete ancestry

Part of speech: adjective

Example: He is a full-blooded member of the tribe.

Category: Biology

Synonyms:

• purebred
• thoroughbred

Antonyms:

• mixed
• crossbred

Meaning: a type of carbon molecule with a hollow structure

Part of speech: noun

Example: Fullerenes are used in nanotechnology.

Category: Science › Chemistry

Synonyms:

• carbon molecule
• C60

Meaning: showing the entire front view of something

Part of speech: adjective

Example: The film features full-frontal nudity.

Category: Arts › Film

Synonyms:

• frontal
• direct

Meaning: a type of seabird found in cold waters

Part of speech: noun

Example: The fulmar glided gracefully over the ocean.

Category: Nature › Birds

Synonyms:

• seabird
• bird

Meaning: to express strong protest or criticism

Part of speech: verb

Example: He fulminated against the unfair policies.

Category: Politics

Synonyms:

• protest
• complain

Antonyms:

• support
• approve

Meaning: excessively flattering or insincere

Part of speech: adjective

Example: His fulsome praise made her uncomfortable.

Category: General

Synonyms:

• excessive
• overdone

Antonyms:

• sincere
• genuine

Meaning: an opening in the Earth's crust that emits steam and gases

Part of speech: noun

Example: The fumarole released sulfurous gases.

Category: Geology

Synonyms:

• vent
• gas vent

Meaning: a word that has little lexical meaning but serves a grammatical purpose

Part of speech: noun

Example: Words like 'and' and 'but' are function words.

Category: Linguistics

Synonyms:

• grammatical word
• structural word

Meaning: the study of how language is used in context

Part of speech: noun

Example: Functional grammar focuses on meaning in communication.

Category: Linguistics

Synonyms:

• pragmatics
• contextual grammar

Meaning: a theory that emphasizes the functions of mental processes

Part of speech: noun

Example: Functionalism is important in psychology.

Category: Psychology

Synonyms:

• function theory
• pragmatism

Meaning: a person who has a specific function or role, especially in an organization

Part of speech: noun

Example: The functionary handled the administrative tasks.

Category: Business

Synonyms:

• official
• administrator

Meaning: an entity that maps between categories in mathematics or computer science

Part of speech: noun

Example: In programming, a functor is used to apply functions.

Category: Mathematics

Synonyms:

• mapping
• operator

Meaning: the lowest frequency of a periodic waveform

Part of speech: noun

Example: The fundamental tone determines the pitch of the sound.

Category: Music

Synonyms:

• base tone
• fundamental frequency

Meaning: a strict adherence to specific beliefs or principles

Part of speech: noun

Example: Fundamentalism can lead to conflict.

Category: Politics

Synonyms:

• strictness
• dogmatism

Antonyms:

• liberalism
• tolerance

Meaning: a person who is knowledgeable or skilled in a particular area

Part of speech: noun

Example: He is a fundi in computer programming.

Category: General

Synonyms:

• expert
• specialist

Meaning: Having the mournful, somber character of a funeral.

Part of speech: adjective

Example: The atmosphere was funereal as they gathered to remember their friend.

Category: Arts › Literature

Synonyms:

• mournful
• sorrowful

Antonyms:

• cheerful
• joyful

Meaning: Resembling or characteristic of fungi.

Part of speech: adjective

Example: The fungoid growth spread rapidly on the damp wood.

Category: Science › Biology

Synonyms: fungal

Meaning: A cable railway on a steep slope.

Part of speech: noun

Example: We took the funicular to the top of the hill.

Category: Transportation › Railways

Synonyms: cable car

Meaning: A colloquial term for a mental health facility.

Part of speech: noun

Example: He joked about going to the funny farm after his breakdown.

Category: Medicine › Mental Health

Synonyms: mental hospital

Meaning: Counterfeit or fake currency.

Part of speech: noun

Example: He was caught trying to use funny money at the store.

Category: Business › Finance

Synonyms: counterfeit money

Meaning: To roll up or fold something neatly, especially a sail or flag.

Part of speech: verb

Example: They had to furl the sails before the storm.

Category: Transportation › Sailing

Synonyms:

• roll up
• fold

Meaning: A unit of distance equal to 1/8 of a mile.

Part of speech: noun

Example: The race was a mile and a half, which is twelve furlongs.

Category: Science › Measurement

Synonyms: distance unit

Meaning: A type of wood-boring insect that damages furniture.

Part of speech: noun

Example: The furniture beetle caused significant damage to the antique chair.

Category: Nature › Insects

Synonyms: woodworm

Meaning: An outbreak of public anger or excitement.

Part of speech: noun

Example: The announcement caused a furore among the fans.

Category: Politics › Public Reaction

Synonyms:

• uproar
• commotion

Meaning: A false or improbable story.

Part of speech: noun

Example: That rumor is just a furphy; don't believe it.

Category: Arts › Literature

Synonyms:

• myth
• falsehood

Meaning: Covered with fur.

Part of speech: adjective

Example: The furred animal looked soft and cuddly.

Category: Nature › Animals

Synonyms:

• furry
• hairy

Meaning: A person who deals in fur or makes fur garments.

Part of speech: noun

Example: The furrier created a beautiful coat from the finest pelts.

Category: Business › Fashion

Synonyms: fur dealer

Meaning: The act of helping something to progress or develop.

Part of speech: noun

Example: They worked in furtherance of their community goals.

Category: Business › Development

Synonyms:

• advancement
• promotion

Meaning: Farthest away in space or time.

Part of speech: adjective

Example: The furthermost star was visible with a telescope.

Category: Science › Astronomy

Synonyms:

• farthest
• most distant