noun

• (cricket) A cricket team of eleven players. Hence first eleven - the team of best cricket players (at a school), second eleven - the "B" team, etc.
• (soccer) A football team of eleven players; the starting lineup.
• (countable, US, slang) A number off the charts of a hypothetical scale of one to ten.
• An exceptional specimen, (particularly) a physically attractive person.
• A very high level of intensity.
• (Internet, slang, sarcastic) Deliberate misspelling of !!. Used to amplify an exclamation, imitating someone who forgets to press the shift key while typing exclamation points.