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Browse key terms and definitions across all GCSE subjects. Search by keyword or filter by subject and exam board.
23,110 key terms
Personification
The representation of an abstract idea, place or natural feature as a human figure, such as Victory or the river Danube.
Personnel
The people involved in making or promoting a media product, including performers, directors, writers and producers.
Person specification
A document setting out the essential and desirable qualifications, skills, experience and personal qualities required of a job applicant.
Perspective
The viewpoint from which someone describes or interprets an issue, influenced by their experiences, interests or role.
Perspective
A writer’s way of seeing a subject, including their attitudes, experiences and priorities.
Perspective
A method of representing depth and distance on a flat surface, including making distant objects appear smaller.
Perspective
A way of looking at an issue that may be shaped by a person's experiences, interests and values.
Perspective distortion
A change in apparent size or shape caused by the viewing angle or apparent depth of a representation.
Perspective drawing
A drawing that uses sloping or receding lines, overlap and changes in position to suggest depth on a flat page.
Perspective drawing
A drawing method that represents depth by making distant objects appear smaller and showing receding parallel edges converging towards vanishing points.
Persuasion
The use of arguments or appeals to influence someone’s beliefs or actions; persuasion need not involve dishonesty.
Persuasive writing
Writing intended to influence a reader’s opinions or actions through a convincing viewpoint and supporting reasons.
Pesach
Passover: the Jewish festival remembering the Israelites' liberation from slavery in Egypt.
Pessimism
An outlook that emphasises suffering, disappointment or the likelihood of unhappy outcomes.
Pest
An organism that damages crops, stored food or livestock and so reduces agricultural output.
Pest-house
A building used to isolate and care for people suffering from an infectious disease such as plague.
Pesthouse
A building used to isolate people suffering from an infectious disease.
Pesticide
A substance used to kill a pest; pesticides include insecticides and herbicides.
PET
Polyethylene terephthalate, a polymer used to make many drinks bottles and polyester fibres.
PET
Polyethylene terephthalate: a plastic used in drinks bottles that can be melted and reshaped, including into fibres.
Petabyte (PB)
A unit of data equal to 1,000 terabytes using the decimal convention.
Peter’s confession
Peter’s declaration that Jesus is the Messiah in Mark 8:29. Here, ‘confession’ means a statement of belief, not an admission of wrongdoing.
Peter’s denial
Peter’s rejection of the claim that he knew or belonged with Jesus, repeated three times after Jesus’s arrest.
Petersen estimate
An estimate of population size calculated using , where is the number marked and released, is the second sample size and is the number marked in the second sample.
Petersen formula
The population-size estimate , where is the first sample size, is the second sample size and is the number of marked individuals in the second sample.
Petition
A formal request asking an authority to remedy a complaint or injustice.
Petition
A request made to God in prayer.
Petition
A request supported by collected signatures, showing support for a specified change.
Petitionary prayer
A prayer that asks God for something, such as help, healing or spiritual guidance.
Petrarchan love
A literary convention in which a lover idealises an unattainable beloved and expresses intense suffering, often through exaggerated comparisons and contradictions. It takes its name from the Italian poet Petrarch.
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