英和和英

open cover

The curtain rises

The plays begins

The performance commences.

an open ticket

of the door, to open

The gate opens.

an open door

an open port

reeve an opening

an open window

an unsealed letter

to break the seal―（みだりに開封するの意味なら）―tamper with the seal

to open (something) completely

a hinged door

open the door

open the gate

come open suddenly

to make a beginning―pave the way for something

to pave the way for something

open secrets

to open the gate

of a door, to open

open

open the lock of

an openwork door

an open ceiling

to open and shut

open the party

to open a door