English definition of “open”
NOT CLOSED [I, T] › If something opens, it changes to a position that is not closed, and if you open it, you make it change to a position that is not closed: to open a door/window The gate won't open. Don't open your eyes yet.
REMOVE COVER [T] › to remove part of a container or parcel so that you can see or use what it contains: Karen opened the box and looked inside. Why don't you open the envelope? I can't open this bottle.
PREPARE FOR USE [I, T] › If an object opens, the parts that are folded together move apart, and if you open it, you make the parts that are folded together move apart: Shall I open the umbrella? Open your books at page 22.
START WORK [I] › If a shop or office opens at a particular time of day, it starts to do business at that time: What time does the bank open?
COMPUTERS [T] › to make a computer document or program ready to be read or used
START OFFICIALLY [I, T] › If a business or activity opens, it starts officially for the first time, and if you open it, you make it start officially for the first time: That restaurant's new - it only opened last month. Several shops have opened up in the last year.
MAKE AVAILABLE [T] › to allow people to use a road or area: They opened up the roads again the day after the flooding.
open an account › to make an arrangement to keep your money with a bank: Have you opened a bank account yet? → See also open the floodgates