di ‧ git /ˈdɪdʒət, ˈdɪdʒɪt/ BrE AmE noun [countable]
[ Date: 1300-1400 ; Language: Latin ; Origin: digitus 'finger, toe' ]
1 . one of the written signs that represent the numbers 0 to 9
three-digit/four-digit etc number
4305 is a four-digit number.
2 . technical a finger or toe