a method of surveying; the area is divided into triangles and the length of one side and its angles with the other two are measured, then the lengths of the other sides can be calculated
a trigonometric method of determining the position of a fixed point from the angles to it from two fixed points a known distance apart; useful in navigation
form a critical opinion of; "I cannot judge some works of modern art"; "How do you evaluate this grant proposal?" "We shouldn't pass judgment on other people"
(sports) the decision made by an umpire or referee; "he was ejected for protesting the call"
a visit in an official or professional capacity; "the pastor's visits to his parishioners"; "a visit to a dentist"; "the salesman's call on a customer"
a brief social visit; "senior professors' wives no longer make afternoon calls on newcomers"; "the characters in Henry James' novels are forever paying calls on each other, usually in the parlor of some residence"
a special disposition (as if from a divine source) to pursue a particular course; "he was disappointed that he had not heard the Call"
a telephone connection; "she reported several anonymous calls"; "he placed a phone call to London"; "he heard the phone ringing but didn't want to take the call"
an instruction that interrupts the program being executed; "Pascal performs calls by simply giving the name of the routine to be executed"
a request; "many calls for Christmas stories"; "not many calls for buggywhips"
a demand especially in the phrase "the call of duty"
a demand for a show of hands in a card game; "after two raises there was a call"
rouse somebody from sleep with a call; "I was called at 5 A.M. this morning"
consider or regard as being; "I would not call her beautiful"
challenge the sincerity or truthfulness of; "call the speaker on a question of fact"
utter in a loud voice or announce; "He called my name"; "The auctioneer called the bids"
order, summon, or request for a specific duty or activity, work, role; "He was already called 4 times for jury duty"; "They called him to active military duty"
order or request or give a command for; "The unions called a general strike for Sunday"
lure by imitating the characteristic call of an animal; "Call ducks"
get or try to get into communication (with someone) by telephone; "I tried to call you all night"; "Take two aspirin and call me in the morning"
order, request, or command to come; "She was called into the director's office"; "Call the police!"
declare in the capacity of an umpire or referee; "call a runner out"
challenge (somebody) to make good on a statement; charge with or censure for an offense; "He deserves to be called on that"
require the presentation of for redemption before maturation; "Call a bond"
ascribe a quality to or give a name of a common noun that reflects a quality; "He called me a bastard"; "She called her children lazy and ungrateful"
utter a characteristic note or cry; "bluejays called to one another"
send a message or attempt to reach someone by radio, phone, etc.; make a signal to in order to transmit a message; "Hawaii is calling!"; "A transmitter in Samoa was heard calling"
read aloud to check for omissions or absentees; "Call roll"
indicate a decision in regard to; "call balls and strikes behind the plate"
give the calls (to the dancers) for a square dance
demand payment of (a loan); "Call a loan"
call a meeting; invite or command to meet; "The Wannsee Conference was called to discuss the `Final Solution'"; "The new dean calls meetings every week"
make a stop in a harbour; "The ship will call in Honolulu tomorrow"
stop or postpone because of adverse conditions, such as bad weather; "call a football game"
(chess) the capture by both players (usually on consecutive moves) of pieces of equal value; "the endgame began after the exchange of queens"
(chess) gaining (or losing) a rook in return for a knight or bishop; "black lost the exchange"
reciprocal transfer of equivalent sums of money especially the currencies of different countries; "he earns his living from the interchange of currency"
the act of giving something in return for something received; "deductible losses on sales or exchanges of property are allowable"
the act of changing one thing for another thing; "Adam was promised immortality in exchange for his disobedience"; "there was an exchange of prisoners"
a workplace for buying and selling; open only to members
a mutual expression of views (especially an unpleasant one); "they had a bitter exchange"
chemical process in which one atom or ion or group changes places with another
give to, and receive from, one another; "Would you change places with me?"; "We have been exchanging letters for a year"
hand over one and receive another, approximately equivalent; "exchange prisoners"; "exchange employees between branches of the company"
the act of systematically moving a finely focused beam of light or electrons over a surface in order to produce an image of it for analysis or transmission
the process of translating photographs into a digital form that can be recognized by a computer