What context can I use each word in?
Learn when and how to use these words with these examples!
speculation
Example
There is a lot of speculation about what caused the sudden drop in the stock market. [speculation: noun]
Example
I can only speculate about what might happen if we don't take action now. [speculate: verb]
theory
Example
The theory of evolution is widely accepted in the scientific community. [theory: noun]
Example
My theory is that the company's profits will increase if we invest in new technology. [theory: noun]
Good things to know
Which word is more common?
Theory is more commonly used than speculation in scientific and academic contexts, where it is a fundamental tool for explaining and predicting phenomena. Speculation is more commonly used in everyday language, often in a negative sense to describe unfounded or baseless claims.
What’s the difference in the tone of formality between speculation and theory?
Theory is typically associated with a formal and academic tone, while speculation is more informal and can be used in various contexts, including finance, politics, and everyday conversation.