Do you consider some (many) of the saints rising up from the graves at the time of Jesus' death on the cross a rapture? (Matt 27:52) It was a resurrection; wasn't it? Although it did not include King David. That I don't know why.
The word actual word in the Greek is 'harpazo' translated as 'caught up.' Those saints who came out of their tombs after Jesus was resurrected, did not get caught up to meet the Lord in the air and therefore it cannot be a rapture. Also, while it is true that they were resurrected, it was similar to when Lazarus was resurrected, which was in their mortal bodies and not in their immortal and glorified bodies and so they all experienced death again. When the saints of Israel are resurrected, so then will those people be resurrected and that in their immortal and glorified bodies.