繁々[shigeshige] frequently
繁栄[hanei] prospering
繁華[hanka] bustle
繁華街[hankagai] business district
繁殖[hanshoku] breed

繁昌[hanjou] prosperity
繁体字[hantaiji] traditional Chinese character
繁文縟礼[hanbunjokurei] red-tapism
繁茂[hanmo] luxuriant growth
繁雑[hanzatsu] complex