Was Glass's wife The Revenant? Meaning of the title...**spoilers**

I had that same thought, and I think it applies to both. I am surprised that a horror movie hadn't snatched up that title already.

After recently watching the film I thought that the theme of death and rebirth for Glass's character was the revenant. Several times throughout the film Glass is accused of killing a person and when he's at the fort talking to the Captain and is asked about whether or not he killed an officer and Glass responds that he did, but for just reasons.

Obviously Glass had made choices that he regretted that also lead to the death of his son. He was attacked by the bear by walking in the woods by himself. He probably would have not been as injured as badly if he had gone with others and had someone else as a lookout/backup or at least another person to fend off the bear.

The lone indian who is eating the buffalo meat and who share some with glass as well as sealing Glass inside the healing tent makes a statement which I found interesting: "your body is rotten..." Now this can refer to the wounds from the bear attack but it also may indicate that Glass's body needs to be cleansed so his actions are no longer tainted by the rot of his body. After Glass emerges from the healing tent (similar to being born) he saves the Powaga girl from the French trappers and doesn't kill Fitzgerald. While it's difficult to say that the post-healing tent Glass is totally different from the wounded/rotten Glass, he does take different actions which can be taken to indicate a spiritual rebirth or at least a transformation.