0 to no longer know what is happening, or not to remember something: --
I've lost track of the number of times he's asked me to lend him money.
What he was saying was so complicated that I lost track after the first couple of sentences.
1 to not know any longer where someone or something is, or to not be able to remember something: --
Can you remember what number we were working on? I've lost track.
I’ve lost track of most of my old college friends, unfortunately.
NYA ORD
European
May 10, 2021
DAGENS ORD
Shimmer
lose track