The professor explained the complex theory to the students.
The professor explained the complex theory to the students.
English
theory
ˈθɪr.i
Meaning: formal set of ideas intended to explain something
Listen to pronunciation
Example sentences
According to the theory of evolution, species change over time.
According to the theory of evolution, species change over time.
Einstein was a mathematical genius whose theories changed science forever.
Einstein was a mathematical genius whose theories changed science forever.
The theory was based on a false assumption.
The theory was based on a false assumption.
Darwin's theory of evolution explains how species change over time.
Darwin's theory of evolution explains how species change over time.
Usage Notes
In science, a theory is a well-substantiated explanation. In everyday speech, it can mean a mere guess.
Sottaku
About Sottaku
Sottaku is an app for learning Chinese, Japanese, Korean, English, Spanish, French, German, and Italian with a strong focus on SRS. It includes automatic flashcard creation for hundreds of thousands of words, grammar breakdowns in example sentences, language-specific study packs where available, adaptive quizzes, mobile apps, a browser extension, and community features. Give it a try now! All learning content is free with no limits on flashcards or study time.
Sottaku is built to match the habits of successful learners. By using Sottaku, you will naturally learn in the most efficient way possible, as proven by countless success stories in the language learning community.
Free Forever
Access all grammar guides, quizzes, and flashcards without paying a cent. Quality education should be accessible to everyone.
Smart SRS System
Our flashcard system uses the FSRS algorithm (also used in Anki) to optimize your review schedule and maximize retention.
Comprehensive Content
From hanzi, kana, hangul, and European vocabulary basics to grammar and reading practice where available, we have lessons for every level. Practice with quizzes tailored to your skill.
Community Chat
Ask level-appropriate questions and get help from the community. Learn together with fellow learners across all 8 supported languages.