noun
1.
/ ˌsʌbdɪˈvɪʒn; NAmE / [ U ] the act of dividing a part of sth into smaller parts
2.
/ ˈsʌbdɪvɪʒn/ [ C ] one of the smaller parts into which a part of sth has been divided :
a police subdivision (= the area covered by one particular police force)
subdivisions within the Hindu caste system
3.
/ˈsʌbdɪvɪʒn/ [ C ] ( NAmE ) an area of land that has been divided up for building houses on