different between uncork vs unstop

English

un- +? cork.

uncork (third-person singular simple present uncorks, present participle uncorking, simple past and past participle uncorked)

(transitive) To open (a bottle or other container sealed with a cork or stopper) by removing the cork or stopper from.
uncork a bottle of wine
(transitive) To release.
- 2002, The Middle East (issues 319-329, page 10)
  The 11 September attacks uncorked a whirlwind of outlandish conspiracy theories.

From Middle English unstoppen, equivalent to un- +? stop. Cognate with Dutch ontstoppen, German entstopfen.

unstop (third-person singular simple present unstops, present participle unstopping, simple past and past participle unstopped)

To remove a stoppage; to clear a blockage.
I was able to unstop the clogged toilet by using a plunger.
To unplug or uncork a container.
I unstopped a bottle of wine to celebrate.
To draw out the stops of (an organ).

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