What does the word stumble mean?

Usage examples for stumble

  1. " There's no fear of Bowker reading the advertisements through, he has far too much literary taste for that, and even if he did, he's not likely to stumble on this one. – The Settler and the Savage by R.M. Ballantyne
  2. You stumble forward, onward, without noticing the broken nature of the ground. – Over the Top With the Third Australian Division by G. P. Cuttriss
  3. I just stumble along as best I can. – The Return by Walter de la Mare
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