study, science, theory
When you employ a tautology, you needlessly and often unintentionally repeat a similar sense of one word when using other words to describe it, such as in the redundant phrases "free gift" or "usual custom."
An anthology is a book that contains a collection of a particular writer's best works; it can also be a gathering of similar writings, such as short stories or poetry, by different authors.
Epistemology is the philosophical study of knowledge, including its limits, source, and nature.
Eschatology is the philosophical study of what happens after death; it can also pertain to religious doctrines concerning death and its aftermath.
Ontology is a branch of philosophy that discusses such concepts as the very nature of reality, being, essence, and the ultimate entity that gives rise to existence.
Biology is the scientific study of living things, such as plants and animals.
Technology is advanced or modern scientific knowledge of new machines and equipment, such as computers and smartphones that are used in education and business.
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