Be Known As Something vs. Known For Something distinguishes two directly documented constructions. Known as introduces a name, title, identity, or recognized type; known for identifies the work, quality, achievement, or feature that explains why the person or thing is known.
ReviewedEvidence1 sourceSectionEnglish Usage
Quick answer
Use known as to give the name, title, identity, or type by which someone or something is recognized; use known for to state the work, quality, achievement, or feature that creates the reputation.
Key details
Confusion Familyusage-construction
Rule Familyconstruction choice
Termsbe known as + name/type, be known for + reason/work
Further guidance
Core difference
Oxford documents be known as something and be known for something as separate reputation/naming constructions.
Style Boundary
Known as can also introduce an alternative name; known for points to the basis of reputation rather than a label.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
Agree With vs. Agree On separates directly documented constructions and keeps the distinction narrow rather than turning a context-sensitive pattern into a universal preposition rule.
Angry With vs. Angry About separates directly documented constructions and keeps the distinction narrow rather than turning a context-sensitive pattern into a universal preposition rule.
Appropriate For vs. Appropriate To separates directly documented constructions and keeps the distinction narrow rather than turning a context-sensitive pattern into a universal preposition rule.
Available To vs. Available For separates directly documented constructions and keeps the distinction narrow rather than turning a context-sensitive pattern into a universal preposition rule.
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Be Elated To Do vs. Elated By Something compares two directly documented complement patterns for “elated.” Oxford evidence supports an infinitival use as well as elated at/by + noun phrase, so the guide explains the construction choice without generalizing from synonyms.