One word substitution/ compression A person 70 to 79 years old -Septuagenarian Practice of borrowing ideas and words from others and using them as his own - Plagiarism Words different in meaning but similar in sound – Homonym A person who is skilled in horsemanship – Equestrian That which makes it difficult to recognize the presence of real nature of somebody or something – Camouflage A place where birds are kept – Aviary Scientific study of the structure of substances – Chemistry A person who believes easily -Credulous An instrument for measuring heights – Altimeter The place where bricks are baked – Kiln The branch of medical science which deals with the diseases of children – Pediatric A specialist in eye diseases – Oculist/ Ophthalmologist A stage of long-sightedness – Hypermetropia A doctor who treats the diseases of bones – Orthopedist. A state where all religions are respected – Secular A government by the novels – Aristocracy A government by the rich – Plutocracy The passage between the seats in a church -Aisle The platform in a temple where idols are kept – Altar A government of a few – Oligarchy To use dirty language against God or Religion – Blaspheme A government by a king – Monarchy The act of killing of the people -Genocide. Rising from the dead – Resurrection Murder of human being – Homicide A holy book – Scripture Underground caves with burying places for the dead- Catacombs Revolt against a lawful authority -Mutiny.