eight /eɪt/noun 6number 2forms 1phrases 1 noun6 •the figure 8 •Eight o'clock.About eight on the Saturday morning, she purchases a large sheath-knife in the Palais Royal [...] — 1837 •Any of the four cards in a normal deck with the value eight. •A light, narrow rowing boat, especially one used in competitive rowing, steered by a cox, in which eight rowers each have two oars. •The eight people who crew a rowing-boat. •A race in which such craft participate. number2 •A numerical value equal to 8; the number occurring after seven and before nine. •Describing a group or set with eight elements.He works eight hours a day. formseights Phrases with eight behind the eight-ballIn a difficult situation or tight spot; at a disadvantage.