What is the meaning of Raku?

Alternative letter-case form of Raku.

dative/vocative/locative singular of rak

genitive singular of rakk

Rōmaji transcription of らく

first-person singular past indicative of rakt

locative singular of rak

to scratch

to strum

scratch

to fold

to fold

locative/vocative singular of rak

dative/locative singular of rak

Source: wiktionary.org