bottle opener
can opener
church key
clavis
coming out
corkscrew
curtain raiser
debut
embarkation
embarkment
first appearance
floating
flotation
inaugural address
inauguration
induction
initiation
installation
installment
introduction
key
latchkey
latchstring
launching
maiden speech
master key
open sesame
passkey
preliminary
skeleton key
tin opener
unveiling
individual
mortal
person
somebody
someone
soul
start