Learn how to say Tracker correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word tracker:
1a person who tracks someone or something by following their trail:
he operated as a police tracker in the Halls Creek area
a device that follows and records the movements of someone or something:
electronic trackers are now showing ornithologists where the birds go
2 Finance an investment fund which aims to follow in value a stock market index or group of indexes.
a mortgage or savings product whose interest rate aims to follow a particular public interest rate.
3 Music a connecting rod in the mechanism of an organ.