If I want to write a question like,
What does "*" mean to you?
can I write the word without any articles?
For example, should I write
"What does "an old friend" mean to you?" or, is it okay if I write "What does "old friend" mean to you?"
I'm confused with this because there are more search results with "what does "opportunity" mean to you" than "what does "an opportunity" for you," while "what does "a promise" mean to you" has more results than "what does "promise" mean to you."
I'd appreciate it if somebody could explain this for me.