Agent noun of track; one who, or that which, tracks or pursues, as a man or dog that follows game. / (US politics) A person employed to follow and monitor a political rival.

plural of tracker

(cricket) A ball bowled so as to pitch roughly half way down the wicket, ie. half-way between batsman and bowler. (From a slow bowler this is a poor delivery, likely to be hit to the boundary.)

(computing) software that converts an IP address into a hostname and provides location and other information

A navigational device which measures the angular separation of stars with reference to a known time and place in order to achieve precise navigation.

plural of IP tracker

plural of tracker mortgage

(UK, finance) A variable-rate mortgage where the amount of interest paid on the loan is linked to the Bank of England's base rate by a fixed differential.

Device that moves so as to aim a collector of solar energy at the sun as it crosses the sky

(slang, LGBT, sometimes derogatory) A size queen.