A rant is an argument that is fueled by passion, not shaped by facts. When the shouting starts on talk radio, or when a blog commenter resorts to ALL CAPS — you're almost certainly encountering an instance of ranting.

Pronunciation: / rænt/
English Description: talk in a noisy, excited, or declamatory manner
Synonyms: jabber
Chinese Translation: 咆哮(pao2 xiao4)
Spanish Translation: despotricar
ORIGIN: Rant comes from the Dutch ranten, "to talk nonsense." Rave is a close synonym — in fact, "to rant and rave" is a popular expression. When rant is used as a noun, it means something like tirade. The first recorded usage of rant is from the end of the sixteenth century, in Shakespeare's The Merry Wives of Windsor. By the middle of the turbulent seventeenth century, the name Ranters was used as a catchall pejorative for various groups of radical Christian dissenters.

EXAMPLE SENTENCE:

It's a pointed rant full of broadsides aimed at obese people and the notion that it's OK to be overweight.
Though they didn't shy from depicting his anti-Semitism, his most virulent rantings were depicted through supporting characters.

*New word description, story and part of "EXAMPLE SENTENCE" are cited in Vocabulary.com