What does 祭 mean?
祭 is a Japanese noun meaning “festival, feast” in English. It can also be translated as “harassment by an Internet pitchfork mob, galore (as in "goals galore")” depending on context. It is written as 祭 in kanji, まつり in hiragana, and matsuri in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
その祭りはつまらないどころではありませんでした。
The festival was far from dull.