To eradicate something is to get rid of it, to destroy it, and to kiss it goodbye.

Eradicate is from the Latin word eradicare meaning "to root out." When you yank that weed up by the roots, it has been eradicated; it's not coming back. Eradicate often means to kill a bunch of somethings, like what you want the poison to do to the roach family and their extended relatives living in your house, and what we thought we did to bedbugs. You can also eradicate corruption, poverty, or diseases. Although there are all kinds of things to get rid of, we usually want to only eradicate the bad things.

Definitions of eradicate
  1. verb
    destroy completely, as if down to the roots
    synonyms: exterminate, extirpate, root out, uproot
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    type of:
    destroy, destruct
    do away with, cause the destruction or undoing of
  2. verb
    kill in large numbers
    synonyms: annihilate, carry off, decimate, eliminate, extinguish, wipe out
    kill one in every ten, as of mutineers in Roman armies
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    type of:
    cause to die; put to death, usually intentionally or knowingly
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