kāi​mén

to open a door

开门 開門 kāi//mén
to open a door verb + noun
to open a door literally or figuratively

She hugged me as soon as I opened the door.

to open for business verb + noun
to begin a day's business (used for stores or offices)

We open at nine o'clock.

to open to the public
to break down boundaries and carry out work in public or in collaboration with the outside

Frequency

Movie subtitles
39.5 per million appears in 13% of films
Written text
15.4 per million

Sources