(Islam) A Zaidi Shi'a Muslim.
(fandom slang) A fan of the American science-fiction television series Babylon 5.
(slang) A banknote with a value of five units of currency.
(slang, by extension) The value in money that this represents.
(colloquial) A clenched fist.
A mathematical puzzle played on a 5 × 5 grid.
(Islam) A Zaydi Shiite Muslim, who disagrees with the majority of Shiites on the identity of the Fifth Imam.
(religion) A person who gives five percent of their income or five hours a week of their time to charity (a reduction of ten percent tithing).