keep track of sb/sth

/kˈiːp tɹˈak ɒv ˌɛsbˈiː slˈaʃ ˌɛstˌiːˈeɪtʃ/

/kˈiːp tɹˈæk ʌv ˌɛsbˈiː slˈæʃ ˌɛstˌiːˈeɪtʃ/

to keep track of sb/sth

to ensure that one has the latest news or data concerning someone or something

antonyms : lose track

Examples

1. She downloaded the app to keep track of her daily activities.

2. After being caught in a lie, I realized how hard it is to keep track of the details.

3. She placed a calendar on the wall to keep track of important dates.

4. One modern way to do this is to keep track of one's position using longitude and latitude.