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1. Dictionary

   undermine

   /ˌʌndəˈmʌɪn/

   verb

   • 1. erode the base or foundation of (a rock formation): "the flow of water had undermined pillars supporting the roof" Similar erodewear awayeat away atchip awayundercutOpposite shore upsupport
   • ▪ dig or excavate beneath (a building or fortification) so as to make it collapse: "the demolition engineers did eventually undermine two of the tower's six sides" Similar tunnel underdig underburrow underexcavatesap
   • 2. lessen the effectiveness, power, or ability of, especially gradually or insidiously: "this could undermine years of hard work" Similar subvertsabotagethreatenweakencompromisediminishreduceimpairmarspoilruinimpedehinderdamagehurtinjurecrippledisableenfeeblesapshakewhittle awayeat awayinformal:foul upbotchput the kibosh ondrag through the mudthrow a spanner in the works ofqueer the pitch ofthrow a monkey wrench in the works ofOpposite enhanceimprovestrengthen

   Word Origin Middle English: from under- + the verb mine2, probably suggested by Middle Dutch ondermineren.

   Derivatives

   • 1. underminer noun

   Scrabble Points: 12

   • U

     1

   • N

     1

   • D

     2

   • E

     1

   • R

     1

   • M

     3

   • I

     1

   • N

     1

   • E

     1

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   More definitions, origin and scrabble points

2. dictionary.cambridge.org › dictionary › englishUNDERMINE | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

   • Cached

   Undermine means to make someone or something weaker, often gradually. Learn how to use this verb in different contexts with sentences from the Cambridge English Corpus.

   • English (US)

     to make someone less confident, less powerful, or less...

   • Traditional

     UNDERMINE translate: （常指逐漸地）削弱信心、權威等，損害. Learn more in the...

   • Simplified

     UNDERMINE translate: （常指逐渐地）削弱信心、权威等，损害. Learn more in the...

   • Undermine in Spanish

     UNDERMINE translate: minar, debilitar, minar. Learn more in...

   • Undermine in Polish

     UNDERMINE translate: podkopywać, podkopać, podkopać. Learn...

   • Znaczenie Undermine, Definicja W Cambridge English Dictionary

     UNDERMINE definicja: 1. to make someone less confident, less...

   • Undermine in French

     UNDERMINE translate: miner, miner, miner. Learn more in the...

   • Undermine in Russian

     UNDERMINE translate: подрывать, разрушать . Learn more in...

3. www.merriam-webster.com › dictionary › undermineUndermine Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › undermine

   • Cached

   Learn the meaning of undermine, a verb that can mean to subvert, weaken, wash away, or excavate. See synonyms, examples, word history, and related entries.

4. Videos

   • 

     collinsdictionary.com

     UNDERMINE definition and meaning | Collins English Dictionary

     24 Dec 2011

   • 

     8:10

     youtube.com

     🔵 Underpin and Undermine - Underpin Meaning - Undermine Examples - British English Pronunciation

     13 Sep 2019

     9.5K views

   • 

     vocabulary.com

     Undermine - Definition, Meaning & Synonyms

     18 May 2012

   View all

5. www.collinsdictionary.com › dictionary › englishUNDERMINE definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

   • Cached

   Undermine means to weaken, damage, or subvert something or someone by indirect or gradual means. Learn the word frequency, pronunciation, grammar, and usage of undermine with Collins English Dictionary.

6. dictionary.cambridge.org › us › dictionaryUNDERMINE | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

   • Cached

   Undermine means to gradually weaken or destroy someone or something, often gradually. Learn how to use this verb in different contexts, see examples and translations in other languages.

7. www.dictionary.com › browse › undermineUNDERMINE Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › undermine

   • Cached

   to injure or destroy by insidious activity or imperceptible stages, sometimes tending toward a sudden dramatic effect. to attack by indirect, secret, or underhand means; attempt to subvert by stealth. to make an excavation under; dig or tunnel beneath, as a military stronghold.

8. www.vocabulary.com › dictionary › undermineUndermine - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › undermine

   To undermine literally means to dig a hole underneath something, making it likely to collapse. But we more often use the word to describe sabotage or the act of weakening someone else's efforts. SKIP TO CONTENT

9. www.thefreedictionary.com › undermineUndermine - definition of undermine by The Free Dictionary

   www.thefreedictionary.com › undermine

   • Cached

   Undermine means to weaken, injure, or impair something or someone by degrees or imperceptibly. It can also mean to dig a mine or tunnel beneath. See different sources, synonyms, and translations of undermine.