英和和英

come open suddenly

open cover

to extract the square root （of a number）

reeve an opening

open involuntarily

an open window

to open (something) completely

an open door

to close a banquet―（西洋なら）―go to the drawing-room

open the door

an open ceiling

to open a gate

open the gate

to open and shut

open secrets

to be stumped by something or someone

“open sesame.”【イディオム・格言的】

close violently

not open

not open

to extract the cubic root of a quantity

to open the door

to open the door

to open a package

undo the parcel

an unsealed letter

to open completely

to expand the chest

an open port

open wide