1. To part with unintentionally or unwillingly, as by accident, misfortune, negligence, penalty, forfeit, etc.; to be deprived of; as, to lose money from one's purse or pocket, or in business or gaming; to lose an arm or a leg by amputation; to lose men in battle.
"Fair Venus wept the sad disaster Of having lost her favorite dove." -- Prior.
2. To cease to have; to possess no longer; to suffer diminution of; as, to lose one's relish for anything; to lose one's health.
"If the salt hath lost his savor, wherewith shall it be salted ?" -- Matt. v. 13.
3. Not to employ; to employ ineffectually; to throw away; to waste; to squander; as, to lose a day; to lose the benefits of instruction.
"The unhappy have but hours, and these they lose." -- Dryden.
4. To wander from; to miss, so as not to be able to and; to go astray from; as, to lose one's way.
"He hath lost his fellows." -- Shak
5. To ruin; to destroy; as destroy; as, the ship was lost on the ledge.
"The woman that deliberates is lost." -- Addison.
6. To be deprived of the view of; to cease to see or know the whereabouts of; as, he lost his companion in the crowd.
"Like following life thro' creatures you dissect, You lose it in the moment you detect." -- Pope.
7. To fail to obtain or enjoy; to fail to gain or win; hence, to fail to catch with the mind or senses; to miss; as, I lost a part of what he said.
"He shall in no wise lose his reward." -- Matt. x. 42.
"I fought the battle bravely which I lost, And lost it but to Macedonians." -- Dryden.
8. To cause to part with; to deprive of. [R.]
"How should you go about to lose him a wife he loves with so much passion ?" -- Sir W. Temple.
9. To prevent from gaining or obtaining.
"O false heart ! thou hadst almost betrayed me to eternal flames, and lost me this glory." -- Baxter.
To lose ground
to fall behind; to suffer gradual loss or disadvantage.
To lose heart
to lose courage; to become timid. "The mutineers lost heart." Macaulay.
To lose one's head
to be thrown off one's balance; to lose the use of one's good sense or judgment.
"In the excitement of such a discovery, many scholars lost their heads." -- Whitney.
To lose one's self
(a) To forget or mistake the bearing of surrounding objects; as, to lose one's self in a great city. (b) To have the perceptive and rational power temporarily suspended; as, we lose ourselves in sleep.
To lose sight of
(a) To cease to see; as, to lose sight of the land. (b) To overlook; to forget; to fail to perceive; as, he lost sight of the issue.