photosynthetic efficiency
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C1 noun /ˌfəʊtəʊˈsɪnθɛtɪk ɪˈfɪʃənsi/

photosynthetic efficiency

Meaning
The measure of how effectively plants convert light energy into chemical energy through the process of photosynthesis, directly affecting plant growth and crop yield.
Example
Improving photosynthetic efficiency can increase crop yields.
C1 noun /prəˌlɪf.əˈreɪ.ʃən/

proliferation

Meaning
Rapid increase in the number or amount of something; rapid multiplication or growth.
Example
The proliferation of malware is a growing concern.
C1 verb /ˈpɑːzɪt/

posit

Meaning
To assume or suggest something as a fact or basis for reasoning.
Example
The scientist posited a new theory to explain the phenomenon.
C1 noun /prəˈspɛktəs/

prospectus

Meaning
a printed document that advertises or describes a school, business, or investment offering
Example
The university sent out a prospectus to attract new students.
C1 adjective /pəˈfʌŋk.tər.i/

perfunctory

Meaning
done without much effort, interest, or thought
Example
He gave a perfunctory nod and walked away.
C1 noun /ˈpɛdlər/

peddler

Meaning
a person who sells goods, often traveling from place to place
Example
The peddler walked through the village selling fresh fruits.
C1 noun /ˈpoʊl.stɑːr/

Polestar

Meaning
a bright star that appears to stay in the same position in the sky and is used for navigation
Example
Sailors used the polestar to navigate across the ocean.
C1 noun /ˈpluː.mɪdʒ/

plumage

Meaning
the feathers covering a bird's body
Example
The peacock's plumage was vibrant and eye-catching.
C1 adjective /ˈpɪər.ləs/

Peerless

Meaning
unequaled; having no match or equal; without rival
Example
Her peerless beauty captivated everyone.
C1 verb /ˈpʌlseɪt/

pulsate

Meaning
to expand and contract rhythmically; to throb or beat
Example
The neon lights pulsated with a steady rhythm.
C1 noun /prəˈpraɪəti/

propriety

Meaning
Conformity to accepted standards of behavior or morality.
Example
He always behaved with the utmost propriety in public.
C1 noun /ˈpraɪ.mər/ (US), /ˈprɪm.ər/ (UK)

primer

Meaning
A basic introductory book or a substance used to prepare a surface for painting.
Example
He read a primer on programming before starting his course.
C1 noun /ˌpærəfəˈneɪliə/

paraphernalia

Meaning
Miscellaneous articles, especially equipment needed for a particular activity.
Example
The fisherman carried all his fishing paraphernalia in a large box.
C1 noun /plæsˈtɪsəti/

plasticity

Meaning
the quality of being easily shaped or molded; adaptability
Example
The brain's plasticity allows it to adapt after injury.
C1 verb /pərˈtɜːrb/

perturb

Meaning
To disturb or unsettle greatly in mind.
Example
The sudden noise perturbed the students during the exam.
C1 noun /ˈprɑːtɪstənt/

protestant

Meaning
a member of the Christian church that separated from the Roman Catholic Church during the Reformation
Example
Martin Luther was a key figure in the Protestant Reformation.
C1 verb pɚˈpɛtʃ.u.eɪt

perpetuate

Meaning
To keep something continuously running or maintain it for a long time.
Example
The media can sometimes perpetuate harmful stereotypes.
C1 noun /ˈpræɡmətɪst/

pragmatist

Meaning
A person who deals with things in a practical and realistic way.
Example
He is a true pragmatist who values results over ideals.
C1 adjective /ˌpærəˈdɒksɪkəl/

paradoxical

Meaning
Seemingly contradictory or opposed to common sense, yet possibly true.
Example
It is paradoxical that standing is often more tiring than walking.
C1 noun /ˈpɔːpər/

pauper

Meaning
A very poor person.
Example
The pauper begged for food on the street corner.
C1 noun /ˈpoʊdiətrɪst/

podiatrist

Meaning
a doctor specializing in foot care
Example
I have an appointment with the podiatrist for my ankle pain.
C1 adjective /prəˈsiːdʒərəl/

procedural

Meaning
Relating to an established or official way of doing something; concerned with procedure.
Example
The committee followed the procedural rules strictly.
C1 noun /ˈpæl.ə.tə.bəl miːt/

Palatable meat

Meaning
Meat that is pleasant to taste; appetizing meat dish
Example
The chef prepared palatable meat dishes for the dinner party.
C1 noun /ˈprɛəri/

prairie

Meaning
A large open area of grassland, especially in North America.
Example
The bison roamed freely across the prairie.
C1 adjective /ˈper.ɪ.ləs/

perilous

Meaning
Full of danger or risk; hazardous and threatening.
Example
The explorers took a perilous journey.
C1 noun /ˈpædʒənt/

pageant

Meaning
A public entertainment consisting of a procession of people in elaborate costumes, or a beauty contest.
Example
She won first place in the beauty pageant.
C1 adjective /ˈpraɪ.məl/

primal

Meaning
Relating to the earliest stage of development; essential or fundamental.
Example
Fear is one of the most primal emotions humans experience.
C1 noun /ˈprɛljuːd/

prelude

Meaning
An action, event, or statement that serves as an introduction to something more important.
Example
The small fight was only a prelude to a bigger conflict.
C1 adjective /prɪˈtɛnʃəs/

pretentious

Meaning
Attempting to impress by affecting greater importance, talent, culture, etc., than is actually possessed.
Example
The restaurant was stylish but far too pretentious for my taste.
C1 noun /ˈpoʊlstər/

pollster

Meaning
a person or organization that conducts surveys to gauge public opinion
Example
The pollster predicted a close election outcome.
C1 adjective /prɪˈsɪpɪtəs/

precipitous

Meaning
Extremely steep or sudden; done quickly without careful consideration.
Example
The hikers struggled to climb the precipitous slope.
C1 noun ˌprəʊ.baɪˈɒt.ɪk

probiotic

Meaning
Live microorganisms that provide health benefits when consumed in adequate amounts.
Example
Yogurt is a natural source of probiotics that aid digestion.
C1 noun ˈpɜː.mə.kʌl.tʃər

permaculture

Meaning
The development of agricultural ecosystems intended to be sustainable and self-sufficient.
Example
Permaculture promotes self-sufficient farming systems.
C1 noun /ˌpɜːrmjuˈteɪʃən/

permutation

Meaning
An arrangement or reordering of elements, often in mathematics or logic.
Example
The puzzle can be solved by trying all possible permutations of the tiles.
C1 adjective /ˈpælpəbl̩/

palpable

Meaning
easily perceived or felt; so intense as to seem almost tangible
Example
There was a palpable sense of excitement in the room.
C1 adjective /ˈpaɪ.əs/

Pious

Meaning
devoutly religious; showing reverence for God
Example
The pious monk spent hours in prayer every day.
C1 noun /ˈpɛdɪɡriː/

pedigree

Meaning
the recorded ancestry or lineage of a person, family, or animal; the history or origin of something
Example
The dog has a pedigree that traces back several generations.
C1 noun /pʌn/

pun

Meaning
A humorous use of words that suggests different meanings or words that sound alike.
Example
He made a clever pun about the bakery's bread rising.
C1 verb /ˈprɒfəsaɪ/

prophesy

Meaning
to state or predict that something will happen in the future, especially as if divinely inspired
Example
The monk prophesied that peace would return to the land.
C1 adjective /pɜːrt/

pert

Meaning
attractively lively or cheeky in manner or style
Example
She gave a pert reply that made everyone laugh.
C1 verb /prɪˈkluːd/

preclude

Meaning
To prevent something from happening; to make impossible.
Example
Heavy rain precluded the possibility of a picnic.
C1 adjective /prɪˈkoʊʃəs/

precocious

Meaning
Showing advanced development or maturity at an unusually early age.
Example
The precocious child was reading novels at the age of five.
C1 adjective /pərˈmɪsəbl̩/

permissible

Meaning
allowed or permitted by rules or law
Example
It is permissible to park here after 6 p.m.
C1 noun /pɒˈstɛrɪti/

posterity

Meaning
All future generations of people.
Example
The monument was built for the benefit of posterity.
C1 noun /ˈpæʃ.ən ˌflaʊ.ər/

Passion flower

Meaning
A climbing plant with intricate, colorful flowers; also refers to royal poinciana tree with red-orange blooms
Example
The passion flower vine covered the garden wall with beautiful blooms.
C1 noun, adjective /ˈpɑːrtɪzən/

partisan

Meaning
A strong supporter of a party, cause, or person; showing biased allegiance.
Example
The debate quickly turned partisan, with each side defending their own agenda.
C1 noun /ˈprɒspɛktər/

prospector

Meaning
a person who searches for mineral deposits, especially gold
Example
The prospector spent years in the mountains searching for gold.
C1 noun /ˌsaɪkoʊˈθɛrəpi/

psychotherapy

Meaning
The treatment of mental disorder by psychological rather than medical means.
Example
She attended weekly psychotherapy sessions to cope with her anxiety.
C1 verb /ˈpruːfˌriːd/

proofread

Meaning
to read written material and mark any errors
Example
She proofread the report before submission.
C1 noun /ˈpleɪn.tɪf/

Plaintiff

Meaning
a person who brings a case against another in a court of law; the person who initiates a lawsuit
Example
The plaintiff filed a lawsuit against the company.
C1 noun /ˌpɜːrspəˈreɪʃn/

perspiration

Meaning
The process of sweating.
Example
Heavy exercise causes perspiration.
C1 noun /pʌnˈdʒɑː.bi/

Punjabi

Meaning
a traditional long shirt worn in South Asia, typically loose-fitting
Example
He wore a white punjabi for the festival celebration.
C1 verb /ˈpɪlfər/

pilfer

Meaning
to steal things of small value or in small quantities
Example
The employee was caught pilfering office supplies.
C1 adjective /ˈpɛnsɪv/

pensive

Meaning
Engaged in deep or serious thought.
Example
She looked pensive as she stared out of the window.
C1 noun /ˈpəʊstˌskrɪpt/

postscript

Meaning
an additional remark at the end of a letter or text, after the signature
Example
She added a brief postscript to thank him again.
C1 noun /ˌpiːdiˈætrɪks/

pediatrics

Meaning
the branch of medicine dealing with the health and medical care of children
Example
She decided to specialize in pediatrics after medical school.
C1 noun /poʊˈɛt.ɪks/

poetics

Meaning
the study or theory of poetry and its principles
Example
He wrote a book on poetics explaining the art of verse.
C1 noun /ˈpleɪˌraɪt/

playwright

Meaning
a person who writes plays
Example
Shakespeare is considered the greatest playwright of all time.
C1 noun /ˈpʌntʃ laɪn/

punch line

Meaning
The final part of a joke or story that makes it funny.
Example
Everyone laughed loudly at the punch line of his joke.
C1 noun /ˌprɒpəˈɡeɪʃən/

propagation

Meaning
The action of spreading and promoting an idea, theory, etc.
Example
The propagation of ideas through social media is rapid.
C1 verb /ˌpriːdɪˈspoʊz/

predispose

Meaning
To make someone more likely to behave in a certain way or be affected by something.
Example
His genetics may predispose him to diabetes.
C1 noun /prəˈpoʊnənt/

proponent

Meaning
a person who advocates for or supports a particular idea, cause, or plan
Example
She is a strong proponent of renewable energy.
C1 verb /ˈpæs.ɪ.faɪ/

pacify

Meaning
To quell the anger, agitation, or excitement of someone.
Example
The mother tried to pacify her crying child.
C1 adjective /ˈpʌlməˌneri/

pulmonary

Meaning
relating to the lungs
Example
The patient suffered from a serious pulmonary infection.
C1 adjective /pərˈsɛptɪv/

perceptive

Meaning
Having or showing keen insight, understanding, or awareness.
Example
She is very perceptive and quickly notices when something is wrong.
C1 adjective /ˈpɪt.i.ləs/

pitiless

Meaning
showing no pity or compassion; cruel
Example
The pitiless ruler ignored the suffering of his people.
C1 verb /pɑːrs/

parse

Meaning
to analyze a sentence or text grammatically or logically
Example
The software can parse large amounts of text data efficiently.
C1 noun /pɪˈtaɪə/

Pitaya / Dragon fruit

Meaning
a tropical fruit with bright pink or red skin and white flesh speckled with black seeds
Example
The pitaya has a mild, sweet flavor and a unique appearance.
C1 noun /ˈpriːsɪŋkt/

precinct

Meaning
A district or area within the boundaries of a city, often for police or electoral purposes.
Example
She went to vote at her local precinct.
C1 adjective /pəˈrɪfərəl/

peripheral

Meaning
Relating to or situated on the edge or outer parts of something.
Example
The town is located on the peripheral area of the city.
C1 verb /ˈplʌm.ɪt/

plummet

Meaning
to fall straight down at high speed
Example
Stock prices plummeted after the sudden market crash.
C1 noun /prɪˈrɒɡətɪv/

prerogative

Meaning
a special right or privilege exclusive to a particular person or group
Example
It is the manager’s prerogative to make the final decision.
C1 adjective /ˈprɒdɪɡəl/

prodigal

Meaning
spending money or resources freely and recklessly; wastefully extravagant
Example
The prodigal son returned home after wasting his inheritance.
C1 adjective /proʊˈzeɪ.ɪk/

prosaic

Meaning
ordinary, dull, or lacking imagination
Example
The teacher’s explanation was accurate but rather prosaic.
C1 verb /præns/

prance

Meaning
To move with high, springy steps, often to show off or attract attention.
Example
The horse pranced around the field gracefully.
C1 noun /pəˈrɛnθəsɪs/

parenthesis

Meaning
A pair of curved marks ( ) used to enclose words or numbers; also an interruption or digression in speech or writing.
Example
The explanation was given in a parenthesis within the text.
C1 adjective /ˌprɛfəˈrɛnʃəl/

preferential

Meaning
showing or giving advantage to one over others
Example
Members receive preferential treatment at the club.
C1 noun /ˈpleɪdʒərɪzəm/

plagiarism

Meaning
the practice of taking someone else's work or ideas and passing them off as one's own
Example
The student was expelled for committing plagiarism in his essay.
C1 verb /pləˈkeɪt/

placate

Meaning
to make someone less angry or hostile; to calm or soothe
Example
He tried to placate the angry customer with a refund.
C1 noun prəˈpɛn.sə.ti

propensity

Meaning
An inclination or natural tendency to behave in a particular way.
Example
He has a propensity for taking risks in business.
C1 verb /prəˈkræs.tɪ.neɪt/

procrastinate

Meaning
To delay or postpone action; to put off doing something, especially out of habitual carelessness or laziness.
Example
He tends to procrastinate when facing difficult tasks.
C1 adjective /ˈpræk.tɪ.kə.bəl/

practicable

Meaning
able to be done or put into practice successfully
Example
The plan is not practicable without more resources.
C1 adjective /ˈpiːvɪʃ/

peevish

Meaning
Easily irritated, especially by unimportant things.
Example
The child grew peevish when denied candy.
C1 noun /ˈpær.ə.kiːt/

Parakeet

Meaning
a small colorful parrot with a long tail, often kept as a pet
Example
The green parakeet learned to say hello.
C1 noun /ˈpɔːsɪti/

paucity

Meaning
the presence of something in only small or insufficient quantities
Example
The project was delayed due to a paucity of funds.
C1 noun /ˈpoʊʃən/

potion

Meaning
a liquid with healing, magical, or poisonous properties
Example
The witch gave the hero a healing potion.
C1 noun /ˈpriːˌkɜrsər/

precursor

Meaning
Something or someone that comes before another and indicates the approach of something else.
Example
The steam engine was a precursor to modern trains.
C1 verb /pəˈruːz/

peruse

Meaning
to read something carefully and thoroughly; sometimes used to mean to browse casually
Example
She sat down to peruse the contract before signing it.
C1 noun /ˈpɛnənt/

pennant

Meaning
A tapering flag used for signaling or as an emblem of victory or achievement.
Example
The team raised the championship pennant proudly.
C1 adjective /ˈplaɪənt/

pliant

Meaning
flexible; easily influenced or adaptable
Example
She has a pliant personality that adapts well to new situations.
C1 adjective /ˈpəʊ.tənt/

Potent

Meaning
having great strength, power, or effect; influential
Example
The medicine is very potent and should be taken carefully.
C1 verb /pəˈveɪd/

pervade

Meaning
to spread through and be present in every part of something
Example
The smell of fresh flowers pervaded the entire room.
C1 adjective prəˈvɪnʃəl

provincial

Meaning
Of or concerning a province of a country or empire.
Example
Bengali was not just a provincial language.
C1 verb ˈplʌmɪtɪŋ

plummeting

Meaning
Falling or dropping suddenly and steeply; decreasing rapidly
Example
The fertility rate in Bangladesh is plummeting.
C1 adjective /ˈpɛnɪtənt/

penitent

Meaning
Feeling or showing sorrow and regret for having done wrong.
Example
She was penitent after shouting at her friend.
C1 adjective /ˈpɛtjʊlənt/

petulant

Meaning
Childishly sulky or bad-tempered.
Example
The child became petulant when denied more candy.
C1 verb /proʊˈtruːd/

protrude

Meaning
To stick out or extend beyond a surface.
Example
A nail was protruding from the wooden board.
C1 noun/verb /pɔːr/

pore

Meaning
As a noun: a tiny opening in the skin or surface. As a verb: to study something carefully.
Example
She pored over the documents for hours before making a decision.
C1 noun /ˈproʊtəˌʒeɪ/

protege

Meaning
a person who is guided and supported by an older and more experienced person
Example
The young artist was the protege of a famous painter.
C1 adjective /ˈpʊʃi/

pushy

Meaning
excessively assertive or aggressive, often annoyingly so
Example
The salesperson was too pushy, which drove customers away.
C1 adjective /ˈpɑːm.pəs/

Pompous

Meaning
showing off; pretentious; overly grand
Example
His pompous attitude annoyed everyone at the meeting.
C1 adjective /ˌpæθəˈdʒɛnɪk/

pathogenic

Meaning
Capable of causing disease.
Example
Some bacteria are harmless, while others are highly pathogenic.
C1 noun

Peck

C1 adjective পারসিভেবল

perceivable

Meaning
Able to be seen, noticed, or detected.
Example
The changes in winter weather are perceivable in rural areas.
C1 noun /prɪˈzʌmp.ʃən/

Presumption

Meaning
an idea that is taken to be true without proof
Example
There is a presumption of innocence in the legal system.
C1 noun /pɛnˈtæθlɒn/

pentathlon

Meaning
An athletic contest featuring five different events.
Example
She trained hard to compete in the modern pentathlon.
C1 adjective /ˈpɔːrəs/

porous

Meaning
Having tiny holes that allow liquid or air to pass through.
Example
The soil is very porous and drains quickly.
C1 noun,verb /pleɪt/

plait

Meaning
a braid of hair or straw; to braid
Example
She decided to plait her hair before the party.
C1 adjective /ˈpiːkənt/

piquant

Meaning
having a pleasantly sharp or spicy taste; interestingly provocative
Example
The chef added a piquant sauce to the dish to enhance its flavor.
C1 verb /prəˈfes/

profess

Meaning
to declare or claim openly; to state one's belief
Example
He professes his love for classical music.
C1 noun prəˈpʌl.ʃən

propulsion

Meaning
The action of driving or pushing forward.
Example
Jet engines provide propulsion for aircraft to travel long distances.
C1 noun, adjective /ˌpəʊstˈmɔːtəm/

postmortem

Meaning
An examination of a dead body to determine the cause of death.
Example
The doctor carried out a postmortem on the body.
C1 adjective /pərˈtɜːrbd/

perturbed

Meaning
feeling anxious, unsettled, or disturbed
Example
He looked perturbed after hearing the bad news.
C1 adjective /ˌpɛd.əˈɡɒdʒ.ɪ.kəl/

pedagogical

Meaning
Relating to teaching and education; concerned with the methods and practice of teaching.
Example
The school adopted new pedagogical techniques to improve learning.
C1 noun /pəˈrɪm.ɪ.tər/

perimeter

Meaning
the continuous line forming the boundary of a closed geometric figure or area
Example
The soldiers guarded the perimeter of the camp.
C1 noun /peɪˈiː/

payee

Meaning
A person to whom money is paid or is to be paid.
Example
The payee must sign the check before cashing it.
C1 adjective /pəˈmɪs.ɪv/

permissive

Meaning
Allowing or characterized by great or excessive freedom of behavior; very lenient or indulgent.
Example
Permissive parenting can sometimes lead to a lack of discipline in children.
C1 adjective prɪˈkeə.ri.əs

precarious

Meaning
Not securely held or in position; dependent on chance; uncertain.
Example
His financial situation is precarious.
C1 noun ˈprɒdʒ.ə.ni

progeny

Meaning
A descendant or the descendants of a person, animal, or plant; offspring.
Example
The philosopher's teachings have influenced many generations of progeny.
C1 noun /ˈpɑːrlər/

parlor

Meaning
A sitting room in a private house, or a shop providing specified services.
Example
They welcomed the guests into the front parlor.
C1 noun /plɔɪ/

ploy

Meaning
a clever plan or action designed to gain an advantage
Example
She used a clever ploy to win the debate.