noun
plural -taries
[count] a person whose job is to handle records, letters, etc., for another person in an office
a person in a club or other organization who is in charge of keeping letters and records
a US :an official who is selected by the President and is in charge of a particular department of the government
b Brit :a government official who helps a minister, an ambassador, etc.
c Brit :secretary of state 2 - see also foreign secretary