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Related to closed: closed circuit, Closed set, Closed captioning

case closed

1. Said after a given question, debate, or mystery has been solved or answered. So you see, it was the dog who ate the blueberry pie, not me. Case closed!
2. The aforementioned decision, outcome, resolution, or situation is final, with no ambiguity or room for variation or amendment. The only way we'll be able to keep the company open is to undertake a 30% reduction in staff, case closed. My wife had an affair and our marriage is over. Case closed.
See also: case, closed


(used as a modifier before a noun) Not open to or in view of the public; private and/or secret. There have been a lot of closed-door meetings recently to discuss the sale of the company.

with (one's) eyes closed

With very little or no difficulty; in a relaxed, carefree, or effortless manner. It took me a little while to get used to this job, but now I could do it with my eyes closed! You should ask Johnny for help—he does this level of math with his eyes closed.
See also: closed, eye

a closed mouth gathers no feet

If you say nothing at all, then you can't say anything embarrassing or inappropriate. A play on the idiom "put (one's) foot in (one's) mouth" (to say something stupid). A: "Oh my god, I can't believe I said that. Why are you being so quiet?" B: "Because a closed mouth gathers no feet!" Knowing that I would inevitably say something ridiculous, I kept my mouth shut—a closed mouth gathers no feet, after all.
See also: closed, feet, gather, mouth

be a closed book

To be difficult to know or understand. She's such a private person that I don't know much about her. I guess she's a closed book. I'm a scientist, so art will always be a closed book to me.
See also: book, closed

able to do something with one's eyes closed

Fig. able to do something very easily, even without having to think about it or look at it. (Always affirmative. Able to can be replaced with can.) It's easy. I can do it with my eyes closed.
See also: able, closed, eye

behind closed doors

in secret; away from observers, reporters, or intruders, usually in a closed room. They held the meeting behind closed doors, as the law allowed. Every important issue was decided behind closed doors.
See also: behind, closed, door

behind closed doors

privately or secretly The serious meetings took place behind closed doors and not during social events. Politicians still decide on candidates behind closed doors.
See also: behind, closed, door

do something with your eyes closed

also do something with your eyes shut
to do something very easily do something with one hand tied behind your back I've filled in this form so many times, I can do it with my eyes closed.
See also: closed, eye

be a closed book

to be something that you know or understand nothing about (usually + to ) I'm afraid physics will always be a closed book to me.
See also: book, closed

behind closed doors

if something is done behind closed doors, it is done in private The United Nations Security Council met behind closed doors in New York.
See also: behind, closed, door

somebody could do something with their eyes closed/shut

if someone could do something with their eyes shut, they can do it very easily, usually because they have done it so many times before I've driven along this route so often, I could do it with my eyes shut.
See also: closed, could, eye

behind closed doors

In secret, privately. For example, The nominating committee always meets behind closed doors, lest its deliberations become known prematurely . Also see behind the scenes.
See also: behind, closed, door

closed book, a

A secret, mystery, or puzzle, as in I can't figure her out; she's a closed book to me. This term alludes to information one can't obtain or comprehend (because the book is closed). [Early 1900s]
See also: closed

closed door

1. An obstacle or restriction, as in There are no closed doors in the new field of gene therapy. [First half of 1900s]
2. close one's doors. See close down. Also see behind closed doors; close the door.
See also: closed, door

with one arm tied behind one's back

Also, with one hand; with one's eyes closed. Very easily, as in I can assemble that chair with one arm tied behind my back, or I could make a better dinner with one hand, or He can do that puzzle with his eyes closed. All these phrases are hyperbolic. Also see do blindfolded.
See also: arm, back, behind, one, tie

with (one's) eyes closed

Unaware of the risks involved.
See also: closed, eye
References in periodicals archive ?
Santa Paula; rodent infestation, unsanitary conditions; closed Feb.
We have excluded them from our side so they could go into the airport closed sessions,'' said City Manager Robert ``Bud'' Ovrom.
i) a generalized closed set (briefly g closed) [12] if cl(A) [subset or equal to] U whenever A [subset or equal to] U and U is open,
Kirklees College - All sites will be closed to students AMBULANCE SERVICES Ambulance service union Unison has agreed a number of measures to provide emergency cover to protect vulnerable patients during strike day.
The Wisconsin Society of Professional Engineers (Oak Creek, WI) has closed "Engineering Professional," a bimonthly launched in 1960 that had a paid circulation of 2100, and Witter Publishing Corp.
The southbound freeway will be closed from midnight to 4 a.
These include (1) any transaction closed before the end of the 30th day after the close of the tax year (short-term hedge rule), if (2) the taxpayer holds the AFP to which the transaction relates (i.
Cooling water in the closed loops is chemically treated at the initial fill to dissolve the solids and keep them in suspension, explains Theys.
County Supervisor Zev Yaroslavsky said that, if federal officials closed Martin Luther King Jr.
Given the difficulties that can arise in talks with any municipal concern, the speed with which this deal was closed is notable.
In the case of a closed tax year, the period for assessment and/or refund has expired.
N-Star VI is a revolving commercial real estate cash flow collateralized debt obligation (CDO) that closed on March 17, 2006.
Angeles National Forest's woods and slopes now are virtually empty - closed by the worst fire season in 83 years and weather so dry it is turning hardy manzanita brown and killing pine trees.
CapitalThinking closed its first loan on May 16, a $2.
Under current tax law, a short sale against the box is not treated as a sale or exchange until the short sale is closed (Regs.