(bound form) used in transliterated words, especially in Buddhist terms like 菩萨 pú​sà

(bound form) used in the transcription of foreign names and words; for example, used for the "s" or "ce" sound in names like "Charles"

(bound form) fort; fortress; castle; also used to transliterate names ending in -burg or -berg, or as an abbreviation for 汉堡 hàn​bǎo