Simple meaning
What does Theory mean?
Theory means an explanation idea that needs testing.
Dictionary definition
An idea that explains something but may still need proof.
Example sentences
Theory in a sentence
easy
In class, we used theory to explain our answer.
medium
Good readers use theory when they compare clues in a passage.
hard
The story asks students to use theory to judge which choice is most fair.
Synonyms
Words like Theory
reasonUse for thinking based on evidence.
understandUse for clear meaning in your mind.
Antonyms
Opposite words
Word family
Theory word family
Base word
theory
noun
theory
Base form.
Related words
Explore related words
Quick practice
Try Theory
Practice 1
What does theory mean in context?
Theory means theory means an explanation idea that needs testing.
Practice this skill
Practice vocabulary in WordHive
Use the dictionary to understand Theory, then move into short activities matched to the skills on this page.
Learning paths
- Define the Word Hive for word meanings.
- Synonym Search for word choice.
- Context Clue Challenge for sentence clues.
- Buzz Between for homophones and listening.
- Hive Builder for roots, prefixes, and suffixes.