by-by-, bye- /baɪ/ prefix 
less important: 
a by-product (=something made in addition to the main product) a by-election (=one held between regular elections)
less important: a by-product (=something made in addition to the main product) a by-election (=one held between regular elections)- city hall
- City of David
- city planning
- cityscape
- city slicker
- city-state
- City Technology College
- citywide
- CIVETS countries
- civic
- civic centre
- civics
- civil
- Civil Aviation Authority
- Civil Contingencies Committee
- civil defence
- civil disobedience
- civil engineer
- civil engineering
- civilian
- civility
- civilization
- civilize
- civilized
- civil law