n. 暗语, 暗号, 口令, 口号, 行话, 术语, 习俗, 习惯, 陈词滥调, 过时的信仰

Shibboleth \Shib"bo*leth\, n. [Heb. shibb[=o]leth an ear of
corn, or a stream, a flood.]
1. A word which was made the criterion by which to
distinguish the Ephraimites from the Gileadites. The
Ephraimites, not being able to pronounce sh, called the
word sibboleth. See --Judges xii.

Without reprieve, adjudged to death,
For want of well pronouncing shibboleth. --Milton.
※ Also used in an extended sense.

The th, with its twofold value, is . . . the
shibboleth of foreigners. --Earle.

2. Hence, the criterion, test, or watchword of a party; a
party cry or pet phrase.