业余

Traditional form:

業餘

Pinyin (reading):

yèyú

Definitions:

• in one's spare time
• outside working hours
• amateur (historian etc)

Characters:

• 业 - business, profession; to study, to work
• 余 - surplus, remainder; surname

Traditional characters:

• 業 - business, profession; to study, to work
• 餘 - surplus, remainder, excess