What does compel mean?
To compel someone is to force them to do something, usually through pressure that leaves little real choice — whether that pressure comes from law, circumstance, moral duty, or sheer necessity. A judge may compel a witness to appear; a sense of fairness may compel a person to apologize. The word carries a formal, somewhat weighty tone and appears frequently in legal writing, journalism, and serious prose. It can also apply impersonally: compelling evidence compels belief, meaning the facts themselves leave no room for reasonable doubt. Derived forms include the adjective "compelling," describing something irresistibly interesting or convincing, and the noun "compulsion," denoting an irresistible urge. Because compel always implies resistance overcome or alternatives foreclosed, using it signals seriousness — one compels where mere asking would not suffice.
To force or oblige someone to do something through pressure, authority, or necessity; to make unavoidable.
"The law compelled employers to provide safety training."
Often followed by an infinitive with 'to': compel someone to do something.
To exert a powerful, irresistible influence on someone's thinking or feeling, as when strong evidence compels belief or assent.
"The data was so consistent that it compelled acceptance of the new theory."
In this sense compel often takes a direct object without an infinitive: 'compel attention,' 'compel belief.'
"Compel" and "expel" are siblings — both born from the same Latin root pellere, 'to push,' with only a prefix deciding whether you're pushed in or thrown out.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of compel
Compel comes from the Latin verb compellere, formed from com- ('together') plus pellere ('to drive, push'). It entered English via Old French in the late Middle English period, around the 14th century, retaining the core idea of driving or forcing. It shares this Latin root with expel (push out), impel (push toward), propel (push forward), repel (push back), and dispel (drive away), making it part of a productive family of force-related verbs.
Related word forms
How compel is actually used
Register: formal to neutral. Commonly used in legal and official contexts. The phrase 'feel compelled' often signals reluctance — the speaker acts under pressure rather than free choice.
Easily confused with compel
"Compel" means to force someone to do something, while "comply" means to obey a rule or request.
"Impel" suggests driving someone forward from within (motive or desire), whereas "compel" implies external pressure or constraint.