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 principle, including its inflections. Clear word filter
New
Mastered
Noun + noun(3)
-
exclusion principle
the rule that identical electrons, protons, or neutrons cannot share the same quantum state
superposition principle
the geological principle that lower sedimentary layers are older than those above them in an undisturbed sequence
uncertainty principle
a quantum principle limiting how precisely certain paired quantities can be specified together