Bip39 English Words. From this point forward the seed can be written on paper or spoken more than telephone which opened up new, physical means of backing up the seed (several paper copies in different destinations, resilient copies on steel plates with additional security from hearth/flood etc.). The BIP39 Wordlist https://financeonline59371.wikiconverse.com/5171764/the_anatomy_of_the_bip39_phrase_entropy_words_and_phrases_and_safety