Cryptocurrency

Cryptocurrency Explained: Can Words in a BIP39 Mnemonic Repeat? [Bitcoin, Ethereum, Security]

Recently, Andreas was asked if words in a BIP39 mnemonic can repeat. The short answer is yes. If you want to learn more about how mnemonics work, and really understand your bitcoin, ethereum, or other cryptocurrency wallet, watch this 2 min video.

Chapter
0:00 Can words repeat in a mnemonic phrase?
0:10 Yes the word about repeated 23 times plus a valid checksum word is a valid mnemonic
0:58 In the English BIP39 dictionary, you only need the first 4 letters of each word!

Learn more about bitcoin and cryptocurrency key security by watching these videos:
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What is a mnemonic phrase?
Can someone guess my private key?
Setting up secure storage devices:
Worst ways to store bitcoin:

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About aantonop: Andreas isn’t promoting a company or an organization; he’s paid by the cryptocurrency community (people who support this work on Patreon and YouTube) and provides an unbiased look at bitcoin and open blockchain technologies, what they can do for our societies, and how to get involved (if you decide you want to). Learn more at

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