Imperial units commonly used units for length are (li), (tseung/cheung), (tsek/chek), (tsun/chun), (fen/fan) in descending scale order. These units are now rarely used in daily life, the imperial and metric systems being preferred. The imperial equivalents are written with the same basic Chinese characters as the Chinese system. In order to distinguish between the units of the two systems, the units can be prefixed with "Ying" () for the Imperial system and "Wa" () for the Chinese system. In writing, derived characters are often used, with an additional (mouth) radical to the left of the original Chinese character, for writing imperial units.
Imperial Majesty (style) Imperial Majesty (style) Imperial Majesty ("His/Her Imperial Majesty", abbreviated as "HIM") is a style used by Emperors and Empresses. It distinguishes the status of an emperor/empress from that of a King/Queen, who are simply styled Majesty. Who is Her Imperial Majesty is superior in politic honor to whom is simply Her Majesty. Holders of this style have sometimes been observed to follow religious leaders who are styled "His Holiness" in public ceremonies. King-Emperors and Queen-Empresses sometimes have used the style "Imperial and Royal Majesty" (e.g., The Empress Frederick's style "Her Imperial and Royal Majesty The German Empress and Queen of