サインブックだろう
saimbukkudarō
1. Probably a sign-in book.
Noun
#379294
1. Probably a sign-in book.
1. sine
1. autograph; signature
2. sign; signal
1. neon (Ne)
2. neon sign
1. book
1. peace
2. peace sign; V sign
1. signing; autograph session
1. Board of Audit
1. green light; (giving) permission
1. autographed; signed