公序良俗

こうじょりょうぞく

noun

•

public order and morals, social standards, public policy(yojijukugo)

公	public, prince, official, governmental
序	preface, beginning, order, precedence, occasion, chance, incidentally
良	good, pleasing, skilled
俗	vulgar, customs, manners, worldliness, mundane things

きんえん

、

きんえん

いじょう

、

きつえん

こうじょりょうぞく

はん

こうい

There are so many anti-smoking campaigns these days; maybe smoking really is a threat to the public order