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a. The act or an instance of inspecting or testing something, as for accuracy or quality: gave the paper a final check.
b. A standard for inspecting or evaluating; a test: The condition of the wiring can serve as a check for the level of the seller's home maintenance.
c. A check mark.
a. A ticket or slip of identification: a baggage check.
b. A bill at a restaurant or bar.
c. A chip or counter used in gambling.
a. Something that stops or slows down motion, action, or expression; a restraint: Heavy rains were a check on the army's advance.
b. The condition of being stopped or held back; restraint: kept my temper in check; holding agricultural pests in check with sprays.
c. A stopping or slowing down of something: "The medicines ... gave a check to the disorder that was destroying him" (Richard Henry Dana).
d. Sports The act of blocking or impeding an opponent with the puck in ice hockey, either with one's body or one's stick.
4. A written order to a bank to pay the amount specified from funds on deposit; a draft.
a. A pattern of small squares, as on a chessboard.
b. One of the squares of such a pattern.
c. A fabric patterned with squares: a dress of pale green check.
6. Games
a. A move in chess that directly attacks an opponent's king but does not constitute a checkmate.
b. The position or condition of a king so attacked.
7. A small crack; a chink.
1. Games Used to declare that a chess opponent's king is in check.
2. Informal Used to express agreement or understanding.
v. checked, check·ing, checks
a. To inspect so as to determine accuracy, quality, or other condition; test: checked the brakes for wear; checked the paper for misspellings.
b. To verify by consulting a source or authority: checked her facts before speaking; check a spelling in the dictionary.
c. To put a check mark on or next to: checked off each item on the list.
a. To arrest or slow the motion or progress of: checked the flow by shutting a valve.
b. To hold in restraint; curb: check an impulse to laugh. See Synonyms at restrain.
c. Baseball To stop (the swing of the bat) in an attempt to avoid swinging at a pitch that is out of the strike zone: The batter checked his swing, and the pitch was called a ball.
d. Sports To block or impede (an opposing player with the ball or puck), as in ice hockey, by using one's body or one's stick.
3. To deposit or consign for safekeeping or shipment: checked his coat at the door; checked my bags and boarded the plane.
4. Games To move in chess so as to put (an opponent's king) under direct attack.
5. To make cracks or chinks in: Sunlight dried and checked the paint.
a. To make an examination or investigation; inquire: phoned to check on the departure time; checked into the rumor.
b. To be verified or confirmed; pass inspection: The suspect's story checked out.
c. To agree point for point; correspond: The fingerprints checked with the ones on file.
a. Sports To block or impede an opposing player with the ball or puck, as in ice hockey.
b. To come to an abrupt halt; stop: The soldiers rushed into the room but checked when they saw their commander.
3. To write a check on a bank account.
4. To undergo cracking in a pattern of checks, as paint does.
5. Games
a. To place a chess opponent's king in check.
b. In certain card games, to announce that one is declining the option of making a bet.
a. To pause to relocate a scent. Used of hunting dogs.
b. To abandon the proper game and follow baser prey. Used of trained falcons.
Phrasal Verbs:
check in
To register, as at a hotel.
check out
1. To settle one's bill and leave a hotel or other place of lodging.
2. To withdraw (an item) after recording the withdrawal: check out books.
3. To record and total up the prices of and receive payment for (items being purchased) at a retail store: The cashier checked out and bagged my order.
4. Slang To die.
check over
To look over; examine: The teacher checked the students' papers over.

[Middle English chek, check in chess, from Old French eschec, from Arabic šāh, from Persian, king, check; see shah.]

check′a·ble adj.
Word History: The words check, chess, and shah are all related. Shah, as one might think, is a borrowing into English of the Persian title for the monarch of that country. The Persian word shāh was also a term used in chess, a game played in Persia long before it was introduced to Europe. One said shāh as a warning when the opponent's king was under attack. The Persian word in this sense, after passing through Arabic, probably Old Spanish, and then Old French, came into Middle English as chek about seven hundred years ago. Chess itself comes from a plural form of the Old French word that gave us the word check. Checkmate, the next stage after check, goes back to the Arabic phrase shāh māt, meaning "the king is dead." Through a complex development having to do with senses that evolved from the notion of checking the king, check came to mean something used to ensure accuracy or authenticity. One such means was a counterfoil, a part of a check, for example, retained by the issuer as documentation of a transaction. Check first meant "counterfoil" and then came to mean anything, such as a bill or bank draft, with a counterfoil—or eventually even without one.


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The MathWorks today announced that its PolySpace Client for C/C++ and PolySpace Server for C/C++ code verification products now support all checkable JSF++ rules for the Joint Strike Fighter (JSF) Air Vehicle program, providing extensive and complete JSF++ rule checking capability.
L-3 GCS Cheetah II type approval for GX operation: This lightweight, truly portable and airline checkable terminal is embedded with the iDirect Velocity Global Xpress Core Module, 5W commercial Ka-band BUC, controller/processor and Ethernet switch.
Averages of daily figures, except debt end-of-period basis; billions of dollars, seasonally adjusted] M1 M2 Sum of currency, M1 plus retail Debt demand deposits, MMMF balances, travelers checks, savings deposits Debt of and other (including MMDAs), domestic checkable and small nonfinancial Period deposits (OCDs) time deposits sectors (1) 1999: Dec (r) 1,122.
Securicor claims it looks for recruits with an "honest, checkable background, a confident, polite approach and smart appearance".
13) This suggests both that total checkable deposits (TCD) and currency are uncorrelated and that there are no indirect effects of TABULAR DATA OMITTED policy actions on M1.
The model is so complicated and so large, and takes so many computers to run it, and it must be run so many times for the answer to converge, that it is fundamentally not checkable by any third party, including the NRC staff.
Probabilistically Checkable Proofs (PCPs) encapsulate the striking idea that verification of proofs becomes nearly trivial if one is willing to use randomness.
Monthly seasonal factors used to construct M1, January 2000--March 2002 Other checkable deposits(1) Nonbank Year and month travelers Demand Currency checks deposits Total At banks 2000--January .
Aug Sep Oct Nov Dec 04 04 04 04 04 Growth in BankAtlantic Checkable Deposits 32.
M1, another narrow monetary aggregate, consists of currency in the hands of the public plus demand and other checkable deposits.
9892 Year and month Other checkable deposits(1) Total At banks 1999--January 1.
Network World endorsed several additional features in NAS, stating that it "provided excellent search, auditing and report capabilities, with devices, modules, configurations, tasks, sessions and events all checkable against specified criteria.