Important ology words for competitive exams includes all the ology words and their meanings. A suffix is a letter or group of letters placed at the end of a word to create a new word. Suffixes are a handy tool of grammar that allows you to make a new word with a meaning that is closely related to the word the suffix is being attached to.

Ology Words starting with A
| Acarology | The study of mites and tricks | 
| Accidentology | The study of accidents (especially of motor vehicle accidents) | 
| Actinobiology | The study of the effects of radiation upon living organisms | 
| Aerobiology | The study of biological particles transported through air (particles such as pollen, spores, microorganisms, or viruses) | 
| Aerolithology | The study of meteorites | 
| Aerology | The study of the atmosphere | 
| Aetiology | The study of the causes of diseases | 
| Agnoiology | The study of things of which cannot be known | 
| Agriology | The study of primitive, illiterate cultures | 
| Agrobiology | The study of plant nutrition and growth in relation to soil | 
| Agrology | The study of soil science related to crop production | 
| Agrostology | The study of grasses | 
| Algology | The Study of Algae | 
| Allergology | The study of causes and treatment of allergies | 
| Amphibology | The study of ambiguous sentence or phrase | 
| Anesthesiology | The branch of medicine concerned with anesthesia and anesthetics | 
| Andrology | The branch of medicine concerned with male diseases (especially male reproductive system) | 
| Anemology | The study of the movements of the winds | 
| Angelology | The study of angles | 
| Angiology | The branch of medical science concerned with the blood vessels and the lymphatic system | 
| Anthology | A published collection of poems, songs, musical compositions or other pieces of writing | 
| Anthropobiology | The biological study of the human species | 
| Anthropology | The study of human societies and cultures and their development | 
| Antitechnology | Opposite of technology | 
| Apiology | The scientific study of bees and honey | 
| Apology | Expression of regret | 
| Archaeology | The study of human history and prehistory through the excavation of sites and the analysis of artefacts and other physical remains. | 
| Archaeozoology | The analysis of animal remains found at archaeological sites | 
| Archology | The science of origins of things or The science of government | 
| Arcology | An extremely large habitat or settlement, sufficient to maintain an internal ecology | 
| Aristology | The art or science of cooking and dining | 
| Astacology | The study of crayfish | 
| Astrobiology | The study of life anywhere in the universe | 
| Astrogeology | The study of structure and composition of planets and other bodies in the solar system | 
| Astrology | The study of the movements and relative positions of celestial bodies and their influence on humans | 
| Atheology | The study of atheism (disbelief or lack of belief in the existence of God or gods) | 
| Atmology | The branch of science dealing with the laws and phenomena of aqueous vapour | 
| Audiology | The branch of science and medicine concerned with the sense of hearing | 
| Autecology | The ecological study of a particular species | 
| Autology | The study of oneself | 
| Axiology | The study of principles and values | 
Also read, Animals-Sound Pairs
Ology Words starting with B
Important ology words for Competitive Exams includes all the ology words and their meanings.
| Bacteriology | The study of bacteria in relation to disease and agriculture. | 
| Balneology | The study of baths and bathing | 
| Batology | The study of members of the species Rubus ( brambles) | 
| Bibliology | The study of the history of books | 
| Bioclimatology | The study of the effects of climate on the biological processes of living organisms | 
| Biology | The study of all life or living matter | 
| Biometeorology | The study of the relationship between living organisms and weather | 
| Biopsychology | The science of the brain and nervous system and how they influence behavior | 
| Biotechnology | The study of biological processes for industrial and other purposes | 
| Bryology | The study of mosses and liverworts | 
| Bumpology | The pseudoscientific study of bumps on the skull | 
Also read, Animals-Sound Pairs
