What does the word "tirade" most closely mean?

The term "tirade" refers to a long, often vehement, speech or discourse that expresses strong criticism or condemnation. It is characterized by a passionate or aggressive tone and typically focuses on expressing anger or frustration about a particular issue. As such, when considering the definitions provided in the options, "a long harsh or abusive speech" aligns perfectly with the essence of a tirade. This word typically conveys negativity and intensity, distinguishing it from options that suggest positive or neutral interactions, such as supportive conversations, celebratory events, or friendly discussions, which do not capture the same level of heated expression or criticism inherent in a tirade.