Third-person singular simple present indicative form of lose sleep

(Scotland, obsolete) Of a pump: to dry up; to yield no water.

(transitive with with) Become impatient.

(figuratively) To get distracted and lose track of something (one's train of thought, a conversation).

To act quickly; do something as soon as possible.

(idiomatic) To be anticipated to be won by someone. / Used other than figuratively or idiomatically: see be, someone's, to, lose.

Third-person singular simple present indicative form of lose control

(set phrase) To become unable to control one's emotions or actions; to abandon rationality or reason.

present participle of win the battle, but lose the war

(slang) To become angry.