@koikun
o·pen/ˈōpən/
adjective
1. allowing access, passage, or a view through an empty space; not closed or blocked up.
"the pass is kept open all year by snowplows"
2. exposed to the air or to view; not covered.
"an open fire burned in the grate"
verb
1. move or adjust (a door or window) so as to leave a space allowing access and view.
"she opened the door and went in"
2.unfold or be unfolded; spread out.
"the eagle opened its wings and circled up into the air"