Someone who finds information about something.

(Being or living) under the surface of the earth. beneath surface of ground. Subway system, e.g. in London.

person holding position of authority in armed services etc.. People of high position in the military. provide with military officers.

Something you say, giving an opinion; remark. To say something that gives your opinion.

not able to be found. To do without something.

having handle. To buy, sell, or move materials or goods.

at recent time.

continuing or valid to final destination. expressing movement into one side and out of other side of opening etc.. By a particular way or process; by the use of.

To keep someone somewhere, e.g. in jail.

new or inexperienced. point at which something begins. To do the first part of an action; to start.

relating to application of scientific methods to investigation of crime. forensic tests or techniques.

(Of problem, etc.) not solved/worked out.

Being what was wanted or needed. used to greet someone in polite or friendly way. Friendly greeting to someone who has arrived. To accept or receive something happily and gladly.

originating through division or replication. girl in relation to parents.

thing constituting piece of evidence about past. Highest or most extreme levels achieved. set down in writing or some other permanent form for later reference.