Shibboleth

Shibboleth, a word by which the Gileadites distinguished an Ephraimite from his inability to sound the sh in the word, and so discovered whether he was friend or foe; hence it has come to denote a party cry or watchword.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Shetland * Shields, North
Sheridan, Philip Henry
Sheridan, Richard Brinsley Butler
Sherif
Sheriff
Sheriffmuir
Sherlock, Thomas
Sherlock Holmes
Sherman, William Tecumseh
Sherwood Forest
Shetland
Shibboleth
Shields, North
Shields, South
Shiites
Shikarpur
Shiloh
Shinar
Shintoism
Ship-Money
Shipton, Mother
Shiraz

Nearby

Shibboleth in Brewer’s Dictionary of Phrase & Fable