Parted with unwillingly or unintentionally; not to be
found; missing; as, a lost book or sheep.

Parted with; no longer held or possessed; as, a lost limb;
lost honor.

Not employed or enjoyed; thrown away; employed
ineffectually; wasted; squandered; as, a lost day; a lost opportunity
or benefit.

Having wandered from, or unable to find, the way;
bewildered; perplexed; as, a child lost in the woods; a stranger lost
in London.

Ruined or destroyed, either physically or morally; past
help or hope; as, a ship lost at sea; a woman lost to virtue; a lost
soul.

Hardened beyond sensibility or recovery; alienated;
insensible; as, lost to shame; lost to all sense of honor.

Not perceptible to the senses; no longer visible; as, an
island lost in a fog; a person lost in a crowd.

Occupied with, or under the influence of, something, so as
to be insensible of external things; as, to be lost in thought.