colloquially

Sodium chloride is known colloquially as common table salt.

(Chinese) 氯化钠被通俗地称为普通食盐。

Although its official name is the 'Elizabeth Tower', it is colloquially referred to as 'Big Ben'.

(Chinese) 虽然它的官方名称是“伊丽莎白塔”，但人们通俗地称之为“大本钟”。