see under keep track.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
How to use lose track in a sentence
Inside ATLAH, where there are few windows and hardly any lights, it is easy to lose track of time.
If the crowd started to audibly sing one of his songs, he would lose track of the vocal and launch into screams of encouragement.I'm Not Country or Pop. I'm Just Pure Garth Brooks. | David Masciotra | September 10, 2014 | THE DAILY BEAST
There's no plot, but visitors don't want to lose track of it.
Americans lose track of the idea of just how important a role we play in the world, and this is a very important region.
"I discipline myself never to lose track of the fact that people can be innocent victims," he says.
"Oh, well, it's easy to lose track of a lone man in a country as big as this," he returned suavely.Raw Gold | Bertrand W. Sinclair
Joy, her eyes slitted, was weaving in and out of traffic so as not to lose track of the blue roadster."And That's How It Was, Officer" | Ralph Sholto
But never, even in their most exciting play, did he entirely lose track of his master.The Country Beyond | James Oliver Curwood
The place you can spend a lifetime cutting ninety foot baulks, and lose track of where you cut.The Man in the Twilight | Ridgwell Cullum
At last Lisbeth said, "I must look after the animals a little now, or I shall lose track of them."Lisbeth Longfrock | Hans Aanrud