List of districts of Bangkok
Bangkok is subdivided into 50 districts (khet, เขต, pronounced [kʰèːt], also sometimes wrongly called amphoe as in the other provinces, derived from Pali khetta, cognate to Sanskrit kṣetra), which are further subdivided into 180 subdistricts (khwaeng, แขวง, pronounced [kʰwɛ̌ːŋ]), roughly equivalent to tambon in the other provinces.
Source: Wikipedia — List of districts of Bangkok (CC BY-SA 4.0)