"Pending"? What does mean?

​Pending status on IRS where my refund site means that your e-filed tax return has been queued in the system and that the IRS hasn't accepted or rejected it yet.
If you e-filed your return before January 31, it will stay in Pending status until the IRS starts processing the backlog of returns.
Keep calm and check back
Until your state or the IRS processes your return, you may see the status there's "no record found." That means the return's still being processed. Just check back in a few days.