/ruːt ʌv ˈtaɪtəl/ – Phrase
Definition: Tài liệu chứng minh quyền sở hữu đất đai.
A more thorough explanation: the document that shows that someone owns property, and therefore has the right to sell it
Example: If the land is to be registered at the Land Registry with title absolute, a good root of title and an unbroken chain of ownership is required.