Practice these 20 carefully selected MCQs on One Word Substitution for the Constable GD 2026 examination. Each question includes a detailed explanation to help you understand not just the correct answer but the underlying concept.
Q1. A person who cannot be corrected:
(A) Criminal (B) Incorrigible (C) Negligent (D) Indifferent
Answer: (B) Incorrigible
Explanation: 'Incorrigible' refers to a person who is not able to be corrected, improved, or reformed. A common exam favourite.
Q2. The study of the universe:
(A) Biology (B) Cosmology (C) Ecology (D) Geology
Answer: (B) Cosmology
Explanation: Cosmology is the science that deals with the origin, evolution, and structure of the universe.
Q3. One who kills his own brother:
(A) Parricide (B) Matricide (C) Fratricide (D) Regicide
Answer: (C) Fratricide
Explanation: 'Fratricide' is the act of killing one's brother. From Latin: frater (brother) + cide (kill).
Q4. Fear of water:
(A) Claustrophobia (B) Hydrophobia (C) Agoraphobia (D) Acrophobia
Answer: (B) Hydrophobia
Explanation: 'Hydrophobia' is an extreme or irrational fear of water. Also a symptom of rabies.
Q5. A person who travels to a holy place:
(A) Tourist (B) Pilgrim (C) Nomad (D) Wanderer
Answer: (B) Pilgrim
Explanation: A 'pilgrim' is a person who journeys to a sacred place for religious reasons.
Q6. Words inscribed on a tomb:
(A) Epitome (B) Epilogue (C) Epitaph (D) Epigram
Answer: (C) Epitaph
Explanation: An 'epitaph' is a phrase or form of words written in memory of a person who has died, especially as an inscription on a tombstone.
Q7. A person who hates women:
(A) Philanthropist (B) Misanthrope (C) Misogynist (D) Feminist
Answer: (C) Misogynist
Explanation: A 'misogynist' is a person who dislikes, despises, or is strongly prejudiced against women.
Q8. The killing of a king:
(A) Patricide (B) Homicide (C) Regicide (D) Fratricide
Answer: (C) Regicide
Explanation: 'Regicide' is the action of killing a king. From Latin: rex/regis (king) + cide (kill).
Q9. A doctor who treats children:
(A) Podiatrist (B) Paediatrician (C) Orthopaedist (D) Dermatologist
Answer: (B) Paediatrician
Explanation: A 'paediatrician' is a doctor who specialises in the medical care of infants, children, and adolescents.
Q10. An animal that feeds on plants:
(A) Carnivore (B) Omnivore (C) Herbivore (D) Insectivore
Answer: (C) Herbivore
Explanation: A 'herbivore' is an animal that feeds on plants. From Latin: herba (plant) + vorare (to eat).
Q11. A person who believes in God:
(A) Atheist (B) Agnostic (C) Theist (D) Nihilist
Answer: (C) Theist
Explanation: A 'theist' is a person who believes in the existence of God or gods.
Q12. The art of beautiful handwriting:
(A) Typography (B) Calligraphy (C) Stenography (D) Photography
Answer: (B) Calligraphy
Explanation: 'Calligraphy' is the art of writing beautifully. From Greek: kallos (beauty) + graphia (writing).
Q13. A place where bees are kept:
(A) Aviary (B) Apiary (C) Aquarium (D) Vivarium
Answer: (B) Apiary
Explanation: An 'apiary' is a place where bees are kept; a collection of beehives.
Q14. One who walks in sleep:
(A) Insomniac (B) Somniloquist (C) Somnambulist (D) Narcoleptic
Answer: (C) Somnambulist
Explanation: A 'somnambulist' is a person who sleepwalks. From Latin: somnus (sleep) + ambulare (to walk).
Q15. A person who pretends to be someone else:
(A) Traitor (B) Impersonator (C) Fraud (D) Hypocrite
Answer: (B) Impersonator
Explanation: An 'impersonator' is a person who pretends to be someone else, especially for entertainment or fraud.
Q16. Government by the people:
(A) Monarchy (B) Autocracy (C) Democracy (D) Theocracy
Answer: (C) Democracy
Explanation: 'Democracy' is a system of government by the whole population or all the eligible members, exercised through elected representatives.
Q17. A place where animals are kept:
(A) Apiary (B) Zoo (C) Aviary (D) Sanctuary
Answer: (B) Zoo
Explanation: A 'zoo' (zoological garden) is a place where wild animals are kept for public display. Note: aviary is for birds, apiary for bees.
Q18. Murder of a human being:
(A) Regicide (B) Suicide (C) Homicide (D) Fratricide
Answer: (C) Homicide
Explanation: 'Homicide' is the deliberate and unlawful killing of one person by another. From Latin: homo (human) + cide (kill).
Q19. One who copies another's work without giving credit:
(A) Author (B) Editor (C) Plagiarist (D) Publisher
Answer: (C) Plagiarist
Explanation: A 'plagiarist' is a person who takes the work or ideas of others and passes them off as their own.
Q20. A person who studies old things:
(A) Biologist (B) Archaeologist (C) Geologist (D) Sociologist
Answer: (B) Archaeologist
Explanation: An 'archaeologist' is a person who studies human history through the excavation of sites and analysis of artifacts.