To undo or untangle something that is twisted or knotted. She began to unravel the tangled threads of the old sweater.
To solve or explain something that is complex or mysterious. The detective worked tirelessly to unravel the mystery of the missing jewels.
To become undone or untangled. The rope started to unravel after years of use.
To fail or fall apart, especially gradually, often as a result of internal problems. Their marriage began to unravel after years of constant arguing.