This is the 3635th most frequent Japanese word.
領
"領" means "territory," "domain," or "to govern/lead."
Here, 領 (りょう) is used in the word 領土 (りょうど, territory), referring to a land possession under administrative control.
この国には新しい領土が加わった。
This country gained new territory.
In this sentence, 領 (りょう) is part of the term 受領 (じゅりょう, receipt), concerning the formal reception or acknowledgment of something.
公式な書類には受領印を押印してください。
Please stamp the receipt mark on the official document.
The word 領 (りょう) appears in 領事 (りょうじ, consulate), representing a diplomatic or administrative official.