Definition of lu:
(n) :
(historical) Synonym of route or circuit, an administrative division of imperial China.
(n) :
A diminutive of the female given name Lucy and related names.
(n) :
(countable) A Chinese surname from Mandarin.
(n) :
A Chinese surname from Mandarin from 呂/吕 (Lǚ).
(n) :
A Chinese surname from Mandarin from 盧/卢 (Lú).
(n) :
A Chinese surname from Mandarin from 陸/陆 (Lù).