You said "More like the first definition." The first definition is "to name, write, or otherwise give the letters, in order, of (a word, syllable, etc.)". Thus, I conclude that you are saying that it is impossible to name, write, or otherwise give the letters, in order, of the word "complexity". I have repeatedly seen people in this community talk of "verified debating", in which it is important to communicate with other people what your understanding of their statements is, and ask them whether that is accurate. And yet when I do that, with an interpretation that looks quite straightforward to me, I get downvoted, and your only response is "no", with no explanation.