open-top open-type open-water open-wheel open-work open-world openable windows openable openafs openair openai openal openatv openbet openbook openbox openbravo openbsd opencart opencast mines opencast mining opencast opencl opencms opencourseware opencv opendns opendocument format opendocument opend opened a clinic opened a criminal case opened a formal investigation opened a new chapter opened a new era opened a new office opened a new phase opened a new restaurant opened a new store opened a small shop opened a studio opened again opened an account opened an email opened an embassy opened an investigation opened an office opened as a museum opened as part opened at the beginning opened by queen opened files opened fire opened for signature opened for the first time opened for traffic opened in april opened in august opened in autumn opened in december opened in february opened in january opened in july opened in june opened in march opened in may opened in new york opened in november opened in october opened in paris opened in september opened in the city opened in the heart opened in the summer opened in the year opened it yet opened last week opened last year opened negotiations opened that door opened the book opened the box opened the ceremony opened the chamber of secrets opened the conference opened the debate opened the discussion opened the doors of the house opened the doors opened the door opened the floodgates opened the gates of hell opened the gates opened the gate opened the general debate opened the general discussion opened the meeting opened the scoring opened the seminar opened the session opened the way opened this place opened to traffic opened today opened up my eyes opened up opened vials opened window opened yesterday opened openelec openers opener openeth openexr openfeint openfiles openflow openframeworks opengl rendering opengl support opengl version opengl-based opengl openid connect openid opening a bank account opening a business opening a customer account opening a dialogue opening a new account opening a new chapter opening a new restaurant opening a new tab opening a position opening a restaurant opening a window opening accession negotiations opening access opening accounts opening act opening address opening an account opening an office opening and closing ceremonies opening angle opening area opening arguments opening at the front opening balance sheet opening balance opening band opening bank accounts opening bell opening benchmarks opening bid opening borders opening can opening celebration opening ceremonies opening ceremony of the olympic games opening ceremony took place opening ceremony was held to the opening ceremony opening ceremony opening channels opening chapters opening chapter opening comes opening comments opening concert opening conference opening credits opening dates opening date opening days opening day opening design opening dinner opening direction opening documents opening doors opening drawers opening event opening files opening film opening fire opening force opening function opening gala opening gambit opening game opening goal opening hatch opening height opening hours of the reception opening hours opening image opening in front opening in july