(bound form) pearl; also refers to jewelry or precious things; abbreviation of 珍珠 zhēn​zhū

(bound form) to ally oneself with; to unite; to join or combine; to form an alliance or union with others

(bound form) a round, flat piece of jade with a hole in the center used in ancient China as a ritual object or ornament

to close; to shut; to join; to combine; to pool (efforts, etc.)