What does sworn mean?
“Sworn” is an adjective and the past participle of the verb “swear.” It describes a person, statement, or relationship that is firmly bound by a solemn promise, oath, or declaration. A person may be “sworn in” to an official role, “sworn to secrecy,” or a witness may give “sworn testimony.” The expression “sworn enemy” emphasizes a hostility that is deeply established and often longstanding. Because the word is associated with formal commitments, it carries an emphatic and sometimes ceremonial tone: something is not merely likely or temporary, but formally declared and binding. “Sworn” is the past participle of “swear,” so it appears in constructions such as “has sworn” and “was sworn.” It is especially useful when precision matters, since it distinguishes a promise made under oath or solemn affirmation from an ordinary promise.
Bound or strongly committed by a solemn oath, promise, or declaration.
"He is a sworn opponent of dishonest advertising."
Often used in emphatic fixed expressions such as “sworn enemy” and “sworn to secrecy.”
The past participle of “swear,” used in passive, perfect, and fixed expressions to describe an oath, promise, or formal declaration.
"The new members were sworn in by the chair."
In the construction “sworn to + noun,” it means formally pledged to a duty or obligation.
Sworn is where a promise stops being merely a promise and becomes a binding declaration.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does sworn come from?
“Sworn” is the past participle of “swear,” whose Old English ancestor was swerian, related to forms in other Germanic languages. Its deeper roots are usually traced to a Proto-Indo-European root associated with speaking solemnly or making an oath. “Answer” preserves a related formation, while “forswear” and “unswear” were formed with the same verbal base.
Related word forms
How sworn is actually used
“Sworn” is more formal than everyday alternatives such as “committed” or “pledged,” and is especially common in legal, official, ceremonial, and strongly emphatic contexts. British English is generally non-rhotic, so the final “r” is not pronounced.
Easily confused with sworn
“Swore” is the simple past tense of “swear,” as in “She swore she was innocent,” whereas “sworn” is the past participle or an adjective, as in “She has sworn she is innocent.”
“Sworn” relates to an oath or solemn promise, while “shorn” means cut short, especially hair or fleece.