Meaning: The outer limits or edge of an area.

Part of speech: noun

Example: The park is located on the periphery of the city.

Category: Geography

Synonyms:

• edge
• border

Meaning: An optical instrument for observing from a concealed position.

Part of speech: noun

Example: The submarine used a periscope to see above the water.

Category: Science › Optics

Synonyms:

• viewer
• sight

Meaning: To lie under oath.

Part of speech: verb

Example: He was accused of perjuring himself during the trial.

Category: Law › Criminal Law

Synonyms:

• lie
• deceive

Antonyms:

• tell the truth
• verify

Meaning: Having lied under oath.

Part of speech: adjective

Example: The perjured witness faced legal consequences.

Category: Law › Criminal Law

Synonyms:

• lying
• deceptive

Antonyms:

• truthful
• honest

Meaning: The act of lying under oath.

Part of speech: noun

Example: He was charged with perjury for his false testimony.

Category: Law › Criminal Law

Synonyms:

• false testimony
• lying

Meaning: To spread throughout something.

Part of speech: verb

Example: The smell of cookies permeated the kitchen.

Category: Science › Chemistry

Synonyms:

• saturate
• infuse

Antonyms:

• contain
• restrict

Meaning: An arrangement of items in a specific order.

Part of speech: noun

Example: There are many permutations of the letters in the word 'cat'.

Category: Mathematics › Combinatorics

Synonyms:

• arrangement
• combination

Meaning: Having a harmful effect, especially in a gradual way.

Part of speech: adjective

Example: The pernicious weed spread quickly through the garden.

Category: Health › Effects

Synonyms:

• harmful
• destructive

Antonyms:

• beneficial
• helpful

Meaning: A type of anemia caused by a deficiency of vitamin B12.

Part of speech: noun

Example: Pernicious anaemia can lead to serious health issues if untreated.

Category: Medicine › Anemia

Synonyms: B12 deficiency anemia

Meaning: The concluding part of a speech.

Part of speech: noun

Example: The speaker's peroration was inspiring and memorable.

Category: Arts › Public Speaking

Synonyms:

• conclusion
• finale

Meaning: To carry out or commit a harmful, illegal, or immoral action.

Part of speech: verb

Example: They were accused of perpetrating fraud.

Category: Law › Criminal Law

Synonyms:

• commit
• execute

Antonyms:

• prevent
• stop

Meaning: The motion of a machine that, once started, continues indefinitely without any external energy.

Part of speech: noun

Example: Perpetual motion is impossible according to the laws of physics.

Category: Science › Physics

Synonyms: endless motion

Meaning: To make something continue indefinitely.

Part of speech: verb

Example: They aim to perpetuate their traditions.

Category: General

Synonyms:

• continue
• sustain

Antonyms:

• discontinue
• cease

Meaning: A state of lasting forever or for an indefinite period.

Part of speech: noun

Example: The trust fund was established in perpetuity.

Category: General

Synonyms:

• eternity
• forever

Meaning: The state of being confused or puzzled.

Part of speech: noun

Example: He felt a sense of perplexity after the complicated explanation.

Category: Emotions

Synonyms:

• confusion
• bewilderment

Antonyms:

• clarity
• understanding

Meaning: To treat someone cruelly or unfairly, especially because of their beliefs.

Part of speech: verb

Example: They were persecuted for their religious beliefs.

Category: Law › Human Rights

Synonyms:

• harass
• oppress

Antonyms:

• protect
• defend

Meaning: The act of treating someone cruelly or unfairly.

Part of speech: noun

Example: Persecution of minorities is a serious issue.

Category: Law › Human Rights

Synonyms:

• harassment
• oppression

Meaning: A person who treats others cruelly or unfairly.

Part of speech: noun

Example: The persecutor faced legal consequences for their actions.

Category: Law › Human Rights

Synonyms:

• oppressor
• harasser

Meaning: A condition in which a person is awake but shows no signs of awareness.

Part of speech: noun

Example: Patients in a persistent vegetative state may require long-term care.

Category: Medicine › Neurology

Synonyms: unresponsive wakefulness

Meaning: Minor details or trivial concerns.

Part of speech: noun

Example: He often gets caught up in the persnicketies of the project.

Category: General

Synonyms:

• details
• trivialities

Meaning: The aspect of someone's character that is presented to or perceived by others.

Part of speech: noun

Example: He adopted a confident persona during the presentation.

Category: Psychology › Identity

Synonyms:

• image
• character

Meaning: A person of distinction or importance.

Part of speech: noun

Example: The event was attended by several notable personages.

Category: General

Synonyms:

• figure
• celebrity

Meaning: A person who is unwelcome in a particular place or situation.

Part of speech: noun

Example: He was declared a personal non grata after his controversial remarks.

Category: Politics › Diplomacy

Synonyms: unwelcome person

Meaning: The attribution of human characteristics to non-human entities.

Part of speech: noun

Example: In literature, personification is used to give life to inanimate objects.

Category: Literature › Literary Devices

Synonyms:

• embodiment
• representation

Meaning: To attribute human qualities to something non-human.

Part of speech: verb

Example: The author chose to personify the sun as a cheerful character.

Category: Literature › Literary Devices

Synonyms:

• embody
• represent

Meaning: Having a ready insight into and understanding of things.

Part of speech: adjective

Example: Her perspicacious observations impressed everyone.

Category: General

Synonyms:

• insightful
• perceptive

Antonyms:

• obtuse
• ignorant

Meaning: Holding firmly to an opinion or purpose.

Part of speech: adjective

Example: Her pertinacious attitude helped her succeed.

Category: Communication › Rhetoric

Synonyms:

• persistent
• tenacious

Antonyms: yielding

Meaning: A state of anxiety or mental uneasiness.

Part of speech: noun

Example: His perturbation was evident during the meeting.

Category: Psychology › Emotions

Synonyms:

• disturbance
• anxiety

Antonyms: calmness

Meaning: A highly contagious respiratory disease, also known as whooping cough.

Part of speech: noun

Example: Vaccination can prevent pertussis in children.

Category: Medicine › Infectious Diseases

Synonyms: whooping cough

Meaning: To spread throughout something.

Part of speech: verb

Example: A sense of calm pervaded the room.

Category: Science › Chemistry

Synonyms:

• spread
• infuse

Meaning: Spreading widely throughout an area or group.

Part of speech: adjective

Example: The pervasive influence of technology is evident in daily life.

Category: Science › Sociology

Synonyms:

• widespread
• ubiquitous

Antonyms: rare

Meaning: Showing a deliberate and obstinate desire to behave in a way that is unreasonable.

Part of speech: adjective

Example: His perverse sense of humor often offended others.

Category: Psychology › Behavior

Synonyms:

• contrary
• unreasonable

Antonyms: reasonable

Meaning: The alteration of something from its original course or meaning.

Part of speech: noun

Example: The perversion of the original text led to misunderstandings.

Category: Philosophy › Ethics

Synonyms:

• distortion
• corruption

Meaning: To alter something from its original course or meaning.

Part of speech: verb

Example: He did not intend to pervert the truth.

Category: Philosophy › Ethics

Synonyms:

• distort
• corrupt

Meaning: Having been altered from its original state, often in a morally objectionable way.

Part of speech: adjective

Example: The story had a perverted ending that shocked readers.

Category: Philosophy › Ethics

Synonyms:

• distorted
• corrupted

Meaning: A medical device inserted into the vagina to support the uterus.

Part of speech: noun

Example: The doctor recommended a pessary for her condition.

Category: Medicine › Gynecology

Synonyms: support device

Meaning: A fatal epidemic disease.

Part of speech: noun

Example: The pestilence spread rapidly through the city.

Category: Medicine › Infectious Diseases

Synonyms:

• plague
• epidemic

Meaning: Causing or likely to cause disease.

Part of speech: adjective

Example: The pestilential conditions in the area raised health concerns.

Category: Medicine › Infectious Diseases

Synonyms:

• disease-causing
• infectious

Meaning: A small explosive device used to blow open a door or gate.

Part of speech: noun

Example: The soldiers used a petard to breach the enemy's defenses.

Category: Military › Explosives

Synonyms: explosive

Meaning: To diminish gradually.

Part of speech: verb

Example: The excitement began to peter out as the event went on.

Category: General

Synonyms:

• dwindle
• fade