(often with over) To worry.

Third-person singular simple present indicative form of lose the plot

Skills or knowledge that are seldom applied are likely to be lost with time. / Property and privileges will be lost if they are not utilized.

To be no longer able to see. / To fail to remember; to overlook or neglect.

Third-person singular simple present indicative form of lose their head

Alternative form of lose one's head

(obsolete, idiomatic) To be defeated in a contest.

It is important to do something immediately

Third-person singular simple present indicative form of lose oneself

Third-person singular simple present indicative form of lose sight of