Lesson 11 Theory & Concepts Vocabulary

a hypothesis

(pl. hypotheses) an idea or explanation of sth that is based on a few known facts but that has not yet been proved to be true or correct

an assumption

a belief or feeling that sth is true or that sth will happen, although there is no proof

a theory

a formal set of ideas that is intended to explain why sth happens or exists

a concept

an idea; a basic principle

metaphorical

not having real existence but representing some truth about a situation or other subject

a model

something such as an object, plan, or set of rules that is used to show what something else is like or how it works

to define

to say or explain what the meaning of a word or phrase is

to base upon

to use facts or ideas to develop something