The Merriam-Webster Dictionary defines "despoil" as "to strip of belongings, possessions, or value." Sentences using this word include:

• The factories despoil the air with their sooty smoke.
• The dogs decided to conveniently despoil the wedding display just as the guests walked in.

The word "despoil" is a verb meaning to steal things, to violate, to ravage, to plunder; to ruin by destroying or removing what is valuable.

Example sentences:

They had an elaborate plan to despoil the bank's safe deposit boxes.

There was a time that people didn't recognize how their litter and trash will despoil nature.