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blunder

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verb [intransitive] British English pronunciation: blunder /ˈblʌndə(r)/ 
Word Forms
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present tense
I/you/we/theyblunder
he/she/itblunders
present participleblundering
past tenseblundered
past participleblundered

Related dictionary definitions

  1. 1
    to make a careless or embarrassing mistake

    Government agents had blundered again and arrested the wrong man.

  2. 2
    to move or progress in a careless way, making mistakes or creating problems as you go
    blunder about/around/into:

    Someone was blundering about in the darkness.

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