shibboleth

n old slogan or principle that is no longer regarded by many as very important 陈旧的口号或原则（很多人认为已不太重要的）: elderly politicians still clinging to the outmoded shibboleths of party doctrine 仍然抱著党性教条的陈词滥调不放的年迈的政治家.

shelter, sheltered, shelve, shelves, shelving, shemozzle, shenanigans, shepherd, shepherd's pie (also cottage pie), shepherdess, Sheraton, sherbet, sherd, sheriff, Sherlock Holmes, sherry, Shetland, Shetland pony, Shetland wool, shew, shied, shield, shift, shift from to, shift-key, shiftily, shiftiness, shifting, shifting population, shiftless, shiftlessness, shifty, shilling, shilly-shally, shimmer, shin, shin-bone (also tibia), shin-pad (also `shin-guard), shindig, shindy,