Collocations
Collocations
Explore English words that belong together, with meanings, examples, and sentence practice. Browse by CEFR level or pattern, and add collocations to your deck for regular review.
Phrases containing theory, including its inflections. Clear word filter
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Adjective + noun(5)
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atomistic theory
an explanation of matter in terms of separate, indivisible elementary particles
corpuscular theory
the explanation of light as a stream of tiny particles
ethical theory
a system of ideas about what makes actions right or wrong
undulatory theory
the theory that light travels as waves
untested theory
an explanation or idea that has not yet been checked against evidence
Noun + noun(5)
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atomist theory
a theory that describes matter as composed of small, indivisible particles
domino theory
the political idea that communist control of one country would spread to neighboring countries
estimation theory
the statistical study of inferring unknown properties from observed data
graph theory
the mathematical study of networks made of vertices connected by edges
relativity theory
the physical theory describing relationships among space, time, motion, and gravity