A1large in size or amount: He's a big man.Could I try these shoes in a bigger size?They've got a big house in the country.She has blonde hair and big blue eyes.She's had a big pay rise.I had a great big slice of chocolate cake for tea.A thousand people took part in the region's biggest ever cycle race.informalYou write August with a big (= capital) 'a'.informalShe's always been a big spender(= she has always spent a lot of money).informalYou're not a very big eater, are you? (= You do not eat a lot.)Big and quite bigEnormousA2informalolder or more like an adult: Her big (= older)sister/brother told her to go away.I'm ashamed of you. You're big enough to know better (= at an age where you should know that your behaviour is not acceptable).Describing age and birthdaysC2[before noun]informalused to add emphasis: You're a big bully!He fell for her in a big way(= was greatly attracted to her).Very and extremeComplete and wholeIntensifying expressions