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

• automatist
• automatists
• automatize
• automatized
• automatizes
• automatizing
• automaton
• automatons
• automats
• automobile
• automobiles
• automobilia
• automobilism
• automobilisms
• automobilist
• automobilists
• automorphic
• automorphically
• automorphism
• automorphisms
• automotive
• autonomic
• autonomical
• autonomically
• autonomic nervous system