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v.
discover the location of; determine the place of; find by searching or examining; "Can you locate your cousins in the Midwest?"; "My search turned up nothing"
v.
discover or determine the existence, presence, or fact of; "She detected high levels of lead in her drinking water"; "We found traces of lead in the paint"
v.
find out, learn, or determine with certainty, usually by making an inquiry or other effort; "I want to see whether she speaks French"; "See whether it works"; "find out if he speaks Russian"; "Check whether the train leaves on time"
v.
establish after a calculation, investigation, experiment, survey, or study; "find the product of two numbers"; "The physicist who found the elusive particle won the Nobel Prize"
adv.
at bottom or by one's (or its) very nature; "He is basically dishonest"; "the argument was essentially a technical one"; "for all his bluster he is in essence a shy person"