| revolutionary(radical, partisan, reactionary, leftist, malcontent) |
| ringleader(radical, partisan, reactionary, leftist, malcontent) |
| singer(sneak, herald, informant, squealer, announcer) |
| sneak(source, rat, informant, squealer) |
| snitcher(noun, sneak, informer, informant, squealer) |
| songbird(sneak, herald, informant, squealer, announcer) |
| source(sneak, rat, informant, squealer) |
| sparkplug(radical, partisan, reactionary, leftist, malcontent) |
| stool pigeon(expression, source, sneak, rat, informant) |
| stoolie(noun, sneak, informer, informant, squealer) |
| tattler(source, sneak, rat, informant, squealer) |
| tattletale(source, sneak, rat, informant, squealer) |
| troublemaker(radical, partisan, reactionary, leftist, malcontent) |
| wave maker(expression, radical, partisan, reactionary, leftist) |
| wild rabbit(expression, idiom) |
| activist(noun, spreader) |
| advocator(noun, spreader) |
| brown hare(expression, idiom) |
| capitular |
| church |