What does the word once ler mean?

The word "once ler" is not a recognized English word. It is likely a misspelling or a made-up word.

Here's why it might be a misspelling:

* "Once" is a common word in English meaning "one time" or "at one time."

* "Ler" could be a misspelling of another word, like "let" or "leer."

Here's why it might be a made-up word:

* It could be a character name, especially in fictional works.

* It could be a slang term or a word specific to a particular community or group.

If you can provide more context about where you saw "once ler," it would be easier to figure out what it means.