battle cry batt·lecry fairly common noun 1. a yell intended to rally a group of soldiers in battle Synonymswar crywar whooprallying crybattle cry 2. a slogan used to rally support for a cause “a cry to arms” “our watchword will be” “'” Synonymswar cryrallying crybattle crycrywatchword Related words Broader terms crymotto WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.