lose track

lose track of (someone or something)

1. To lose visibility of, forget about, misplace, or neglect to pay close attention to something. I'm sorry I'm late—we were having so much fun that I completely lost track of time. Do you know what time the party starts? I've lost track of my invitation. I was watching the bird through my binoculars until I lost track of it in the canopy.
2. To unintentionally decrease frequency of communication with someone over time until no further contact takes place. Unfortunately, I lost track of my college roommate, so I have no idea how she's doing now.
See also: lose, of, track
Farlex Dictionary of Idioms.

lose track (of someone or something)

to lose contact with someone; to forget where something is. I lost track of all my friends from high school. Tom has lost track of his glasses again.
See also: lose, track
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

lose track

see under keep track.
See also: lose, track
The American Heritage® Dictionary of Idioms by Christine Ammer.

keep/lose ˈtrack (of somebody/something)

stay/not stay informed about somebody/something; remember/forget about the number of something, the time, etc: It’s hard to keep track of how much money we spend every month. I’ve lost track of the number of times I’ve lost my keys.
See also: keep, lose, track
Farlex Partner Idioms Dictionary
See also:
  • a run on (something)
  • a rush on (something)
  • address (one's) comments to (someone or something)
  • address comments or remarks to
  • address (one's) remarks to (someone or something)
  • be in it for
  • be pressed for time
  • be pushed for time
  • be at a disadvantage
  • at a disadvantage
References in periodicals archive
The story of opposition turning to revolution and the shifts within that revolution is interesting and well told, though one can easily lose track of the many political and religious factions.
I begin to lose track of all this inertia stuff as we slide out of the loop and into a spiral, another loop, and then two spirals turned on their sides....
"Of course, he died in great agony in the Number Six clinic in Moscow." (I began to lose track of the people who died in great agony in the Number Six clinic in Moscow.)
After a torturous journey, the writer of the serial Noor Ul Huda seemed to lose track and finished the story with a happy ending, making it more of a sit-com than serious stuff.
PENSIONS expert Ros Altmann says it's certainly a problem that many people lose track of old pension entitlements, and a widow can find herself left without anything from her late husband's pension unless she is aware of what his entitlement was.
SECURITY Minister James Brokenshire warned yesterday that spooks may lose track of terror suspects after the Guardian published details of GCHQ operations.
DrinkAware.ie chief Fionnuala Sheehan said: "The excitement of results night can make it easy to lose track of how much alcohol you've consumed.
Let people do what they want to do, but I do think that a new normal sometimes starts to exist where the cosmetic surgery itself starts to look normal, and we lose track of what a real face is like," she added.
She said: "How could police lose track of him in the electronic age?"
Often, our students are not facing us in lessons, and it is easy to lose track of how much time goes by without eye contact.
Unless you want to end up being one of those who lose track of their savings and investments, make sure that everyone you deal with has your current address.