ˈiː tˈɛn ɔːɹ ˈiː ˈeɪt plˈʌsplˈʌs ɔːɹ ˈiː ˈeɪt wˈʌn æz ɐ tˈuːnˈoʊd ˌoʊvɚɹɛkstˈɛndᵻd ˈiː ˈeɪt ɪz ɐn ˈɪnfɪnətdᵻmˈɛnʃənəl kˈæk mˈuːdi ˈældʒᵻbɹə hˌuːz ɹˈuːt lˈæɾɪs ɪz ðɪ ˈiːvən lɔːɹˈɛntsiən ˌʌnɪmˈɑːdʒuːlɚ lˈæɾɪs ˌaɪˈaɪ nˈaɪn,wˈʌn ʌv dᵻmˈɛnʃən tˈɛn.
E10 (or E8++ or E8(1)^ as a (two-node) over-extended E8) is an infinite-dimensional Kac–Moody algebra whose root lattice is the even Lorentzian unimodular lattice II9,1 of dimension 10.