chief

[1]	head , leader , top dog , principal , superior , supervisor , superintendent , manager , overseer , captain , master , ringleader , chieftain , Dialect himself , (Colloq) boss , bossman , (Brit) governor , gov , supremo , (US) man , kingpin , (head/chief) honcho , number one , numero uno , headman , big White Chief , big Chief , Great White Father , big Daddy , super , (Slang) big cheese , (Brit) gaffer , (Mainly US) Mr Big
[2]	foreman , gaffer , honcho , boss
[3]	tribal chief

adj.

[1]	head , leading , ranking , superior , supreme , foremost , premier , first , greatest , outstanding
[2]	principal , most important , essential , key , paramount , (first and) foremost , primary , prime , main
[3]	master