watchword Synonyms

secret message code name buzz word catchphrase catch phrase buzzword key word war whoop war cry rallying cry code word codeword tagline key phrase pass code code words secret writing safe word rebel yell passphrase passcode keyword battle cry open sesame words mantra formula dictum cue cry countersign catchword byword banner maxim motto parole word slogan signal sign shibboleth saying proverb phrase password adage