closed

American  

[klohzd] / kloʊzd /

adjective

1. having or forming a boundary or barrier.

   He was blocked by a closed door.

   The house had a closed porch.

2. brought to a close; concluded.

   It was a closed incident with no repercussions.

3. not public; restricted; exclusive.

   a closed meeting;

   a closed bid at a private auction.

4. not open to new ideas or arguments.

5. self-contained; independent or self-sufficient.

   a closed, symbiotic relationship.

6. Phonetics. (of a syllable) ending with a consonant or a consonant cluster, as has, hasp.

7. Linguistics. (of a class of items) limited in membership and not readily expanded to include new items, as the class of inflectional affixes, articles, pronouns, or auxiliaries (opposed to open,).

8. Hunting, Angling. restricted as to the kind of game that may be legally taken and as to where or when it may be taken.

   woods closed to deer hunters.

9. Mathematics.

   1. (of a set in which a combining operation between members of the set is defined) such that performing the operation between members of the set produces a member of the set, as multiplication in the set of integers.

   2. (of an interval) containing both of its endpoints.

   3. (of a map from one topological space to another) having the property that the image of a closed set is a closed set.

   4. (of a curve) not having endpoints; enclosing an area.

   5. (of a surface) enclosing a volume.

   6. (of a function or operator) having as its graph a closed set.

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closed British  

/ kləʊzd /

adjective

1. blocked against entry; shut

2. restricted; exclusive

3. not open to question or debate

4. (of a hunting season, etc) close

5. maths

   1. (of a curve or surface) completely enclosing an area or volume

   2. (of a set) having members that can be produced by a specific operation on other members of the same set

      the integers are a closed set under multiplication

6. Also: checked.  phonetics

   1. denoting a syllable that ends in a consonant

   2. another word for close 1

7. not open to public entry or membership

   the closed society of publishing

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Other Word Forms

Derived Forms

• semiclosed
  adjective
• half-closed
  adjective
• well-closed
  adjective

Etymology

Origin of closed

First recorded in 1175–1225; Middle English; see origin at close, -ed ²

Explanation

If something's closed, it's shut or sealed. When your brother's bedroom door is closed, you'd better knock; if the library's closed, you'll have to come back tomorrow to check out some books. Things that are closed aren't open. People sleep with their eyes closed, and your neighborhood bookstore might be closed on Sundays. Things can be figuratively closed too: if you have a closed mind, you're not willing to consider new ideas or perspectives. The word closed comes from the Old French verb clore, "to shut" or "to cut off from," with its Latin root claudere, "to block up or make inaccessible."

Example Sentences

The finale saw his Doctor regenerate, and the episode closed with the surprise reintroduction of Billie Piper, who previously played Rose Tyler in the show.

From BBC • Jun. 10, 2026

The island remains closed to the public through at least June 30, though the park has alerted people with campsite reservations through Aug. 14 that they may be be canceled.

From Los Angeles Times • Jun. 10, 2026

But it wasn’t long ago that the Pacific Coast Highway was closed to incoming traffic, and the area around the pier where Zegna hosted the show was inaccessible.

From Los Angeles Times • Jun. 9, 2026

General Catalyst and HarbourVest led the round, which closed in the first quarter of this year and included participation from Lightspeed Venture Partners, Intrepid Growth Partners, Valiant Peregrine and others.

From The Wall Street Journal • Jun. 9, 2026

She snapped the compact closed and slipped it into the clutch tucked under her arm.

From "The Red Car to Hollywood" by Jennie Liu

Related Words

• concluded
• decided
• ended
• resolved
• settled