open /ˈəupən/ I. adj. 1. 开着的：The door is open.门开着。He stood there with mouth wide open.他张着大嘴站在那儿。 2.开放的：an open letter 公开信 The road is open.那条路可通行。The union was open to suggestions for improvements. 联盟愿意接受建议来自我完善。 3. 坦率的：a very friendly, open person一个很友好很坦率的人 4.开阔的：Hunting is easiest in open country. 开阔地带打猎最容易。‖II.vt. & vi. 1.开，打开，张开；睁开：Open the window, please.请把窗户打开。The box won’t open. 箱子打不开。 The new shop opened last week.那家新店是上星期开张的。2.开始，开门，开放：open a small shoe shop 开一家小鞋店;open to the world 对外开放 The flowers are opening.花正开放。Schools were opened throughout the country. 全国的学校都开学了。open up 开门；开放；敞开：The government has announced plans to open up access to higher education.政府宣布了敞开高等教育大门的计划。I’ve never opened up to anyone like I do to you.我对别人从来没有像对你那样敞开心扉过。‖III. n. 用于 in the open 在露天，在户外：He slept in the open last night. 他昨晚露宿。
opener /ˈəupənə/ n. [c] 开的人；开始者；开具：a bottle(tin) opener开瓶（罐）器 I bought a bottle opener yesterday.我昨天买了个开瓶器。
opening /ˈəupəniŋ/ I. n. 1.［u］开，开放：He was watching the opening of a flower then.当时他在看花开放。2.［u］&［c］开始，开端；开幕式：They were too late to see the opening of the game.他们来晚了，没有看到比赛的开头。The opening will be at 3 tomorrow.开幕式明天三点举行。 3.［c］口，洞，缝，空隙: A small opening is left at the top. 顶部留有一个小口。 4.职位空缺，就业机会：an opening in a school or store 学校或商店里的一个空位 ‖II. adj. 第一次的，开头的：his opening remarks 他的开场白
