shibboleth /shibˈə-leth/

1. The criterion, catchword or catchphrase of a group, party or sect by which members may be identified
2. A slogan
3. A peculiarity of speech
4. The Gileadite test-word to distinguish an Ephraimite, who could not pronounce sh (from Bible, Judges 12.5–6)
5. Any such test

• fore-admonishes
• fore-admonishing
• fore-advise
• layings
• lay in lavender
• lay into
• lay it on
• lay it on the line
• lay it on thick
• lay it on with a trowel
• laylock
• laylocks
• lay low
• layman
• laymen
• lay odds
• lay off
• lay-off
• lay-offs
• lay of the land
• lay on
• lay oneself open to
• lay oneself out to
• lay one's finger on
• lay on hands