Can you use article before word opportunity?

You can use an article before "opportunity" if you're referring to a specific opportunity. Here's how:

* "A" opportunity: This refers to a general, unspecified opportunity. Example: "I'm looking for a new opportunity to learn."

* "The" opportunity: This refers to a specific opportunity that has already been mentioned or is understood in context. Example: "I applied for the opportunity to lead the project."

However, you wouldn't use an article if you're talking about the concept of opportunity in general.

For example:

* "Opportunity is knocking." (No article needed)

So, it depends on the context and whether you're referring to a specific opportunity or the general concept of opportunity.