English Meaning & Definitions
A supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
- “Darwin's theory of evolution explains how species adapt over time.”
- “Detectives are currently testing a new theory about how the crime was committed.”
A set of principles on which the practice of an activity is based.
- “She is studying music theory to better understand chord progressions.”
- “There is a big difference between art theory and hands-on painting.”
English Synonyms & Near Equivalents
Comprehensive Thesaurus Breakdown
Compare formal, informal, literary synonyms and register nuances for “theory”.
Late 16th century: via late Latin from Greek theōria 'contemplation, speculation', from theōros 'spectator', from theasthai 'to behold' + thra 'view'.
Think of a THEATER where you sit back and watch a performance or a set of ideas play out.
Frequently Asked Questions About “theory”
1. What is the meaning of “theory” in English?
In English, theory (noun) is defined as: “A supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.”.
2. How do you use “theory” in a sentence?
“Darwin's theory of evolution explains how species adapt over time.”
3. What are English synonyms of “theory”?
4. What is the etymology and word origin of “theory”?
Late 16th century: via late Latin from Greek theōria 'contemplation, speculation', from theōros 'spectator', from theasthai 'to behold' + thra 'view'.
🇬🇧More English Words to English
View all English words →The base unit of time in the International System of Units (SI), equal to the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom.
A specific duration of time equal to one hour and forty-six minutes and twelve seconds.
The cardinal number equal to one thousand million (1,000,000,000), expressed in scientific notation as 10^9.
A specific duration of time equivalent to one hour and forty-six minutes.