愉楽 is read as ゆらく (yuraku) and means pleasure.
ゆらく
yuraku
ゆかい
pleasant
ごらく
amusement
はくらく
cattle or horse trader
ががく
old Japanese court music
きがく
instrumental music
きどあいらく
human emotions (joy, anger, grief and pleasure)
こま
spinning top
こうきょうがく
symphony (orchestra)
ほうがく
Japanese music (esp. traditional Japanese music)
げんがく
music for strings
かんげんがく
orchestral music
すいそうがく
wind music