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waste (n):
useless or profitless activity; using or expending or consuming thoughtlessly or carelessly
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if the effort brings no compensating gain it is a waste.
mindless dissipation of natural resources

waste (n):
(law) reduction in the value of an estate caused by act or neglect

waste (n):
the trait of wasting resources
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a life characterized by thriftlessness and waste.
the wastefulness of missed opportunities

waste (n):
an uninhabited wilderness that is worthless for cultivation
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the barrens of central Africa.
the trackless wastes of the desert

waste (v):
get rid of (someone who may be a threat) by killing
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The mafia liquidated the informer.
the double agent was neutralized

waste (n):
any materials unused and rejected as worthless or unwanted
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they collect the waste once a week.
much of the waste material is carried off in the sewers

waste (v):
become physically weaker
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Political prisoners are wasting away in many prisons all over the world

waste (v):
cause extensive destruction or ruin utterly
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The enemy lay waste to the countryside after the invasion

waste (v):
cause to grow thin or weak
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The treatment emaciated him

waste (v):
lose vigor, health, or flesh, as through grief
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After her husband died, she just pined away

waste (v):
spend extravagantly
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waste not, want not

waste (v):
use inefficiently or inappropriately
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waste heat.
waste a joke on an unappreciative audience

waste (v):
get rid of
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We waste the dirty water by channeling it into the sewer

waste (v):
run off as waste
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The water wastes back into the ocean

waste (v):
spend thoughtlessly; throw away
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He wasted his inheritance on his insincere friends.
You squandered the opportunity to get and advanced degree

waste (s):
located in a dismal or remote area; desolate
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a desert island.
a godforsaken wilderness crossroads.
a wild stretch of land.
waste places

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