jiàn
bar of door
Evolution

Seal script
Shuowen (~100 AD)
Seal script
Western Han dynasty (202 BC-9 AD)
Clerical script
Eastern Han dynasty (25-220 AD)
Clerical script
Eastern Han dynasty (25-220 AD)Regular script
ModernDefinitions
jiàn
bar of door, bolt of lock; material (such as rocks, earth, bamboo etc) used to hastily repair a dike; (literary) door bar (vertical bar used to prevent the horizontal movement of a door bolt)