I prefer Nostr. NOtes and other …
Discussion
The O is from "OTHER." Do you say "OWE-ther?"

I certainly don’t saw Awther
You are both wrong. Its a misconception that Nostr stands for "Notes and Other Stuff Transmitted by Relays", because then it would NOSTR. And its not, it is Nostr. The connection is merely a coincidence, Nostr is just a word, and 'notes and other stuff transmitted by relays' is just a description.