What does bylaw mean?
A bylaw is a rule or regulation established by a local authority, organization, or corporation to govern conduct within its own sphere. Municipalities issue bylaws covering everyday matters such as parking, noise, animal control, and property maintenance, while clubs, societies, and companies adopt bylaws that define their internal procedures — how meetings are run, officers elected, and decisions ratified. Unlike statutes passed by national legislatures, bylaws operate at a more localized level and carry authority only within the body that adopts them. The word has an unexpectedly ancient pedigree: it derives from Old Norse, where it literally meant 'town law,' reflecting the self-governing traditions of medieval Scandinavian settlements. In legal and civic contexts, 'bylaw' is formal register language, yet it surfaces regularly in ordinary life whenever a homeowner's association letter or city notice cites a rule residents are expected to follow. Its plural is 'bylaws.'
nounA rule or regulation adopted by a local community, organization, club, corporation, or other body governing its internal affairs and the conduct of its members.
- A regulation made by a local authority governing matters within its own jurisdiction (e.g., noise, parking, building use).
- A rule governing the internal affairs of an organization, society, club, or corporation, especially concerning meetings, membership, and elections.
"The homeowners' association revised its parking bylaw after repeated complaints."
"Under the city's new bylaw, residents must keep their bins off the sidewalk overnight."
"Article five of the society's bylaws requires a two-thirds majority to amend any standing rule."
The plural 'bylaws' refers collectively to the full set of governing rules of a municipality or organization, as in 'the association's bylaws.'
"All members receive a copy of the club's bylaws upon joining."
'Bylaw' is one of English's few words inherited straight from the Vikings — it literally means 'town law,' from the Old Norse for how a settlement governed itself.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of bylaw
The word 'bylaw' comes from Old Norse 'býjar-lǫg,' meaning 'town law' — 'býr' denoting a town or settlement and 'lǫg' meaning laws. It entered English through the influence of Scandinavian settlers in medieval Britain, particularly in areas of heavy Norse settlement. The element 'law' itself derives from the same Old Norse root 'lagu,' making 'bylaw' a compound built entirely of Norse material. It has been used in English since at least the Middle Ages to describe local municipal regulations.
Related word forms
How bylaw is actually used
In British English, 'bylaw' often appears as two words ('bye-law' historically) and typically refers to municipal regulations; in North American usage it is commonly written as one word and applies equally to corporate and organizational rules. The spelling 'bylaw' is standard in modern usage, though 'bye-law' survives in some legal texts.
Easily confused with bylaw
A 'billow' is a large wave or swelling mass, while a 'bylaw' is a governing rule adopted by an organization or locality.