Meaning: A work of art, literature, or film set in a specific historical period.

Part of speech: noun

Example: The movie is a period piece set in the 18th century.

Category: Arts › Film

Synonyms: historical work

Meaning: A table that organizes chemical elements based on their properties.

Part of speech: noun

Example: The periodic table is essential for chemistry.

Category: Science › Chemistry

Meaning: Relating to or situated on the edge of something.

Part of speech: adjective

Example: The peripheral areas of the city are less developed.

Category: Geography

Synonyms:

• marginal
• outer

Antonyms:

• central
• core

Meaning: Inflammation of the peritoneum, the lining of the abdominal cavity.

Part of speech: noun

Example: Peritonitis can be a serious condition requiring immediate medical attention.

Category: Medicine › Diseases

Synonyms: abdominal inflammation

Meaning: Ground that remains frozen for two or more years.

Part of speech: noun

Example: Permafrost is common in Arctic regions.

Category: Nature › Geology

Synonyms: frozen ground

Meaning: Allowing liquids or gases to pass through.

Part of speech: adjective

Example: The material is permeable to water.

Category: Science › Materials

Synonyms:

• porous
• penetrable

Antonyms:

• impermeable
• sealed

Meaning: Allowing or characterized by great freedom of behavior.

Part of speech: adjective

Example: The permissive environment encouraged creativity.

Category: Education › Teaching Styles

Synonyms:

• tolerant
• lenient

Antonyms:

• restrictive
• strict

Meaning: Fussy about small details.

Part of speech: adjective

Example: He is very pernickety about his appearance.

Category: General

Synonyms:

• fussy
• finicky

Antonyms:

• easygoing
• unfussy

Meaning: A chemical compound containing two oxygen atoms.

Part of speech: noun

Example: Hydrogen peroxide is often used as a disinfectant.

Category: Chemistry › Compounds

Synonyms:

• bleach
• oxidizer

Meaning: At an angle of 90 degrees to a given line or surface.

Part of speech: adjective

Example: The two lines are perpendicular to each other.

Category: Mathematics › Geometry

Synonyms:

• vertical
• upright

Antonyms:

• parallel
• horizontal

Meaning: Never-ending or eternal.

Part of speech: adjective

Example: They lived in a state of perpetual happiness.

Category: General

Synonyms:

• everlasting
• endless

Antonyms:

• temporary
• transitory

Meaning: Causing confusion or puzzlement.

Part of speech: adjective

Example: The perplexing riddle took hours to solve.

Category: Education › Learning

Synonyms:

• confusing
• bewildering

Antonyms:

• clear
• simple

Meaning: In a persistent manner; continuously.

Part of speech: adverb

Example: She persistently worked on her project until it was finished.

Category: General

Synonyms:

• continuously
• steadily

Antonyms:

• occasionally
• intermittently

Meaning: Attractive and lively.

Part of speech: adjective

Example: She had a pert smile that brightened the room.

Category: Arts › Literature

Synonyms:

• lively
• cheerful

Antonyms: dull

Meaning: To disturb or upset someone.

Part of speech: verb

Example: The news did not perturb her as much as expected.

Category: Psychology › Emotions

Synonyms:

• disturb
• upset

Antonyms: calm

Meaning: Feeling anxious or unsettled.

Part of speech: adjective

Example: She felt perturbed by the unexpected news.

Category: Psychology › Emotions

Synonyms:

• disturbed
• unsettled

Antonyms: calm

Meaning: The action of reading or examining something.

Part of speech: noun

Example: After a careful perusal of the document, she signed it.

Category: Education › Literature

Synonyms:

• reading
• examination

Meaning: Postgraduate Certificate in Education, a qualification for teaching in the UK.

Part of speech: noun

Example: She completed her PGCE to become a qualified teacher.

Category: Education › Qualifications

Synonyms: teaching qualification

Meaning: A member of an ancient Jewish sect known for strict adherence to the law.

Part of speech: noun

Example: The Pharisee was known for his rigorous interpretation of the scriptures.

Category: Religion › Judaism

Meaning: The study of drugs and their effects on the body.

Part of speech: noun

Example: Pharmacology is essential for understanding how medications work.

Category: Medicine › Pharmacy

Meaning: To introduce something gradually.

Part of speech: phrasal verb

Example: The company will phase in the new policy over the next few months.

Category: Business › Management

Meaning: To gradually stop using or providing something.

Part of speech: phrasal verb

Example: The government plans to phase out coal power by 2030.

Category: Business › Management

Meaning: Observable events or occurrences.

Part of speech: noun

Example: Natural phenomena like rainbows are fascinating.

Category: Science › General Science

Meaning: A chemical substance produced by an animal that influences the behavior of others of its species.

Part of speech: noun

Example: Ants use pheromones to communicate with each other.

Category: Biology › Chemistry

Meaning: Relating to the desire to promote the welfare of others.

Part of speech: adjective

Example: Her philanthropic efforts helped many in need.

Category: Social Science › Charity

Meaning: The desire to promote the welfare of others, often through charitable donations.

Part of speech: noun

Example: Philanthropy plays a vital role in community development.

Category: Social Science › Charity

Meaning: The collection and study of postage stamps.

Part of speech: noun

Example: Philately is a popular hobby for many people.

Category: Hobbies › Collecting

Meaning: A person who is indifferent to culture and the arts.

Part of speech: noun

Example: He was called a philistine for not appreciating the painting.

Category: Culture › Arts

Meaning: A person who seeks wisdom and knowledge.

Part of speech: noun

Example: The philosopher pondered the meaning of life.

Category: Philosophy › General Philosophy

Meaning: The study of the fundamental nature of knowledge, reality, and existence.

Part of speech: noun

Example: Philosophy encourages critical thinking.

Category: Philosophy › General Philosophy

Meaning: A thick fluid produced in the respiratory system.

Part of speech: noun

Example: He coughed to clear the phlegm from his throat.

Category: Medicine › Health

Meaning: Relating to or having a phobia.

Part of speech: adjective

Example: He has a phobic reaction to heights.

Category: Psychology › Mental Health

Meaning: The smallest unit of sound in a language.

Part of speech: noun

Example: The phoneme /p/ is found in the word 'pat'.

Category: Language › Linguistics

Meaning: The study of sounds in human speech.

Part of speech: noun

Example: Phonetics helps linguists understand how sounds are produced.

Category: Language › Linguistics

Meaning: A chemical compound containing phosphorus.

Part of speech: noun

Example: Phosphate is often used in fertilizers.

Category: Chemistry › Compounds

Meaning: A photographic copy of a document or image.

Part of speech: noun

Example: He made a photostat of the important contract.

Category: Technology › Printing

Synonyms: copy

Meaning: The way in which words and phrases are used in a language.

Part of speech: noun

Example: The phraseology of legal documents can be quite complex.

Category: Education › Language

Synonyms: wording

Meaning: The quality of being physical or tangible.

Part of speech: noun

Example: The dancer's physicality was impressive during the performance.

Category: Arts › Dance

Synonyms: corporeality

Meaning: A musical term indicating that a passage should be played very softly.

Part of speech: adverb

Example: The piece ends with a pianissimo passage that creates a gentle atmosphere.

Category: Arts › Music

Synonyms: softly

Meaning: Things that can be picked or gathered, often used in the context of food or resources.

Part of speech: noun

Example: The pickings were slim at the market today.

Category: General