サインブックであれば
saimbukkudeareba
1. If it's a sign-in book; If it were a sign-in book
Noun
#376236
1. If it's a sign-in book; If it were 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