英和和英

The curtain rises

to open the curtain―raise the curtain―draw （back） the curtain

of the door, to open

The door is open.

The gate opens.

the scene immediately following the curtain rise

Open the screen

come open suddenly

of a door, to open

to extract the square root （of a number）

to hold a meeting

of the pupil of the eye, to become wide

something to be opened

to make a beginning―pave the way for something

to open a window―let up a window

to extract the cubic root of a quantity

The curtain rises at 5 sharp [on the dot].

of a closed thing, to start to open

to make a beginning

The door has opened

There's a hole

to shut something that has been open

the manner in which an object opens

It opens.

to keep a gambling house

open the gate

to open the gate

to make canal through―canalize―a country

undo the parcel

of an object, to open