soapbox[verb]Synonyms: orate, bloviate, declaim, harangue, mouth, perorate, rant, rave
[TahlilGaran] English Synonym Dictionary ▲
soap‧box /ˈsəʊpbɒks $ ˈsoʊpbɑːks/
noun [countable usually singular] informal if someone is on their soapbox, they are telling people their opinions about something in a loud and forceful way
on your soapbox
Environmental activists have climbed on their soapboxes to protest the president’s action. [TahlilGaran] Dictionary of Contemporary English ▲