closure
Pluralclosures (some meanings)
Pluralclosures (some meanings)
Formsclosures, closuring, closured
- 1A sense of emotional completeness; the feeling that a difficult chapter has reached its conclusion.
Like the quiet relief of finally exhaling after holding your breath through something hard.
Years after the divorce, she sought closure by writing him one last letter.
The verdict brought a measure of closure to the victim's grieving family.
Similarresolution, peace
Note
Here the ending happens inside a person. The verbs that go with it are verbs of seeking and receiving: you find closure, get closure, or fear you never will. It also scales up to whole societies. Gershom Gorenberg, writing in 2025, calls a state commission of inquiry in Israel "a ritual of national closure", a public way to put events in order and move on.
- 2The act of shutting or closing something, whether permanently or for a limited time.
The bridge closure caused traffic delays across the city for weeks.
Local residents protested the closure of the public library.
Similarshutdown, closing, shutting
Oppositeopening
Note
The word of public notices and local news: bridges, railway lines and roads are what usually close in this sense. A line can be "listed for closure", campaigners argue for or against "the closure of" a route, and the plural is natural for repeated shutdowns, as in "the closures are needed to assess storm damage."
- 3An event or happening that marks or signals an ending.
The peace treaty served as the closure of a decades-long conflict.
Her retirement party marked the closure of an era at the company.
Similarend, conclusion, close, finish, termination
Oppositebeginning, start (entry), opening
- 4The action of shutting; the process by which something becomes closed.
The automatic closure of the valve stops the flow of water instantly.
A gentle closure of the lid kept the contents fresh.
Similarclosing, shutting, sealing
Oppositeopening
Note
The root meaning of the word lies here. It came through Old French from Late Latin clausura, built on Latin claudere, "to close". It names the shutting itself, whether of a door or of a chink. By contrast, the closing of roads and services names a decision to keep something shut.
- 5
- 6A procedure for ending debate in a legislature and forcing an immediate vote on a measure.
The Speaker accepted a motion for closure, ending the marathon debate.
Opposition members objected loudly when the majority moved for closure.
Similarcloture, guillotine
Note
Legislatures need a way to stop talk that will not stop on its own, and closure is that brake. Once it is carried, debate ends and the question goes straight to a vote. Members move for closure, and the chair accepts or refuses the motion. English also has cloture, a doublet from the same Latin source, and the noun has a verb of its own.
- 7A function bundled together with the variables from the scope where it was created, which it can still use when called later.
The closure captured the loop variable, so each callback saw a different value.
JavaScript developers rely on a closure to create private state inside a function.
Note
A programmer's term that keeps the everyday picture of shutting something in. The function carries the variables around it wherever it goes. Put technically, it is a function paired with its lexical environment, and what it captures are its free variables. Luis Atencio's The Joy of JavaScript (2021) pairs closures with higher-order functions, where a returned function still remembers the values it was created among.
- 8Something that closes or shuts, especially a fastener that joins separate parts.
The dress fastens with a hidden closure along the side.
A strong closure held the two flaps of the tent together.
Similarfastener
- 9The smallest set that contains a given subset and also has some specified property.
The transitive closure of a relation adds exactly the pairs needed to make it transitive.
Mathematicians compute the closure by intersecting all sets that satisfy the property.
Note
The general pattern behind a whole family of mathematical closures. Pick a property, then find the least set that has it and still contains what you started with. Such a set exists when the property survives intersection, because the closure is then the intersection of every set that qualifies. Transitive closure is one instance, and the topological closure is another, with "closed" as the property.
- 10The smallest closed set that contains a given set, including all of its limit points.
The closure of the open disk includes the circle that bounds it.
In a metric space, the closure of a set contains all of its limit points.
Note
In topology the property in question is simply being closed. John L. Kelley's General Topology (1955) gives the working description: the closure of a set is the set together with all its accumulation points. Writers usually mark it with a bar over the set's name. A set equal to its own closure is exactly a closed set, which makes a quick test of whether anything was added.
- 11The process by which a group protects its resources by excluding outsiders according to chosen criteria.
Professional licensing can act as a form of social closure that limits who may practice.
The association maintained closure by admitting only candidates from a handful of elite schools.
Note
Sociologists usually say social closure, and the word keeps its literal picture of a door pulled shut. A group guards jobs, status or wealth by deciding who may come in. Licensing, credentials and selective admissions are typical mechanisms. The criteria vary, but the move is always the same: advantage kept by keeping others out.
- 12The part of a package that seals or reseals the opening of a container.
The bottle's flip-top closure makes it easy to pour.
Manufacturers added a tamper-proof closure to the medicine bottle.
Similarcap, lid, top, seal, stopper
Note
In the packaging trade, closure is the umbrella word for screw caps, snap lids, flip-tops and seals alike. Engineers judge a closure by whether it reseals, shows tampering, or resists children's hands. Outside the trade, the everyday device sense stretches further, to zips and clasps on bags and clothing.
- 13The mental process by which a comic reader fills in the events that happen between the panels.
The artist left a wide gutter, trusting closure to let readers imagine the fall.
Without closure, a row of separate panels would never read as a single story.
Note
Comics theory uses the word for the work a reader does unasked. Two panels show a raised fist and a fallen man, and the mind supplies the blow. Randy Duncan and Matthew J. Smith's The Power of Comics (2009) says closure happens within each panel, between panels, and among panels. So it is not only a matter of the gutter between frames.
- 14To end debate on a measure in a legislature by forcing an immediate vote.
The government moved to closure the bill after days of argument.
Members agreed to closure the discussion and proceed straight to a vote.
Similarguillotine
Note
The noun is put to work as a verb, and The New Review in 1893 already writes of closuring amendments and closuring the clause under discussion. It inflects regularly: closures, closuring, closured. Its object is the matter being debated, such as a bill, a clause or an amendment, rather than the members doing the talking.
- 15Something that encloses or confines; an enclosure or surrounding barrier.
The cattle grazed within the closure the farmer had built of hedge and stake.
Beyond the abbey wall lay a small closure where the monks grew their herbs.
Note
An obsolete sense, best remembered from Shakespeare's Richard the Third. There a prison holds its victim "within the guilty closure of thy walls". The word means the walls themselves, not the act of shutting. Modern English says enclosure for this, so calling a fenced field or walled garden a closure now reads as deliberate archaism.
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Origin
Closure came through Middle English and Old French from Late Latin clausura, ultimately from the Latin verb claudere, meaning "to close."