| The act of killing one’s mother | Matricide |
| Murder of an infant | Infanticide |
| The study of languages | Philology |
| The scientific study of plants and their structure | Botany |
| Study of religion | Theology |
| Study of poisons | Toxicology |
| The study of ancient writing and scriptures | Palaeography |
| Study of fossils | Paleontology |
| The study of truth and knowledge | Philosophy |
| The study of coins | Numismatics |
| Study of various aspects of ageing | Gerontology |
| Study of sound and sound waves | Acoustics |
| A study of races | Ethnology |
| The study of rocks and soil | Geology |
| Study of handwriting | Graphology |
| Study of election trends in voting | Psephology |
| A scientific study of the relationship between plants and their environment | Ecology |
| Study of human populations | Demography |
| Study of birds | Ornithology |
| study of the teeth | Odontology |
| Study of insects | Entomology |
| Study of celestial bodies | Astronomy |
| The study of the evolution of mankind | Anthropology |
| The study of the nature of beauty | Aesthetics |
| Study of ancient things like old fossils tombs, buried towns | Archaeology |
| The study of the disease. | Pathology |
| The study of Human Mind | Psychology |
| The study of mental disease. | Psychopathology |
| Science of crimes and criminals | Criminology |
| Study of ocean and ocean phenomena | Oceanology |
| A very expensive and elaborately built tomb | Mausoleum |
| A place where coins and medals are made | Mint |
| A piece of a living tissue or plant that is transplanted surgically | Graft |
| Plants of a particular region | Flora |
| Rearing of silk worms | sericulture |
| The act of washing oneself | Ablutions |
| A speech made without preparation | Extempore |
| A loud appeal or demand | Clamour |
| The date when both, day and night are of approximately equal length | Equinox |
| A group of stars having a particular shape | Constellation |
| One who has the ability to do many different things | Versatile |
| One who mediates in a deal or complex situation | Negotiator |
| One who does something not professionally but for pleasure | Amateur |
| A person having significant experience in an occupation | Veteran |
| Feeling or showing extreme tiredness | Weary |
| Giving the worrying impression that something bad is going to happen | Ominous |
| A person in love with himself | Narcissist |
| A shortened version of a larger work | Abridgement |
| Adjust or make right; correct, amend | Rectify |
| Having or showing an excessively high opinion of one’s appearance, abilities, or worth | Vain |
| Sharp and direct | Acerbic |
| An excessively intense desire for returning to past or lost conditions | Nostalgia |