closure

The definition of closure is the act of closing something, or an end or resolution of something.

(noun)

When a road is not open to the public because it is undergoing repairs, this is an example of a road closure.
When you end a relationship and say your final goodbyes, this is an example of closure.

See closure in Webster's New World College Dictionary

noun

a closing or being closed
a finish; end; conclusion
the feeling that one's prolonged state of emotional distress over some traumatic experience or situation has finally ended
anything that closes or shuts
cloture
Geol. the vertical distance between the highest point of an anticlinal structure and the lowest contour that encircles it
Math. the property of a set in which an operation on pairs of its elements always produces an element of the set
Phonet. a blocking of the air stream at some point in the oral cavity

Origin: OFr < L clausura, a closing < pp. of claudere, to close

transitive verb closured, closuring

cloture

See closure in American Heritage Dictionary 4

noun

The act of closing or the state of being closed: closure of an incision.
Something that closes or shuts.
a. A bringing to an end; a conclusion: finally brought the project to closure.
b. A feeling of finality or resolution, especially after a traumatic experience.
See cloture.
The property of being mathematically closed.