副词
1.开着的
2.敞开着门（或篷等）的；无遮盖的；不用墙（或篱等）围起的
3.空旷的；开阔的
4.散开的；稀疏的；稀松的
5.未封的；未包裹的；未系扎的
6.（道路等）可通行的，无障碍的
7.（眼睛）睁大着的，注视着的；（耳朵）倾听着的；（脸）显得单纯的
8.（职位等）空缺的；可利用的
9.空闲的，无约会的
10.开始营业（或工作）的；活动着的
11.（会议、奖学金、比赛、贸易等）开放的；公开的；（冠军等）赢得公开（锦标）赛的
12.（渔猎期等）解禁的；不禁赌（或酒）的；无管制的
13.（伤口、疮等）外露的，裸露的
14.不加掩饰的，公然的
15.正在考虑的，尚未决定的，悬而未决的
16.坦率的，不作伪的
17.无偏见的，能接受新思想的
18.慷慨的，大方的
19.展开的，摊开的
20.【商】（账户）未结清的，仍在往来的
21.（河流、港口等）不冻的，未封冻的；（气候、季节等）温和的，无霜的
22.（城镇等）不设防的
23.（来回票）未注明往返日期的
24.【英】（支票）非划线的，普通的
25.开式的
n.
1.旷野，空旷之地；茫茫大海
2.(the open)露天，户外；野外
3.【体】公开赛
4.(the open)公开状态
及物动词：
1.开，打开；睁开；张开；展开
2.开辟；清除（道路等）的障碍物；开垦
3.开始
4.为（大楼等）举行揭幕典礼；宣布...开幕
5.开设，开办；开立
6.开放
7.弄松；疏开
8.切开（疖等）
9.使（肠）畅通
10.揭开；表明；暴露；泄露
11.使（思想等）开阔，使善于接受新思想
不及物动词：
1.开；张开；展开
2.通向；朝向
3.开门；开放；开始；开业；开幕；开演
4.疏开，散开；（伤口等）裂开
5.展现，被看见
6.（心胸等）变得开阔；响应
7.自由自在地畅谈
(of textures) full of small openings or gaps
possibly accepting or permitting
not requiring union membership
accessible to all
not sealed or having been unsealed
open to or in view of all
with no protection or shield
having no protecting cover or enclosure
affording unobstructed entrance and exit; not shut or closed
without undue constriction as from e.g. tenseness or inhibition
affording free passage or view
have an opening or passage or outlet
ready for business
not having been filled
begin or set in action, of meetings, speeches, recitals, etc.
become open
display the contents of a file or start an application as on a computer
become available
make the opening move
a clear or unobstructed space or expanse of land or water
information that has become public
a tournament in which both professionals and amateurs may play
not defended or capable of being defended
not brought to a conclusion; subject to further thought
ready or willing to receive favorably
open and observable; not secret or hidden
used of mouth or eyes
openly straightforward and direct without reserve or secretiveness
afford access to
cause to open or to become open
make available
where the air is unconfined
spread out or open from a closed or folded state
start to operate or function or cause to start operating or functioning
affording free passage or access
(set theory) of an interval that contains neither of its endpoints
open on 通往, 通向
be open to 对…开放,供…选择
open with 以...开始
open to 存在...可能性的This book is open to misunderstanding.这本书容易引起误解。同义参见:accountable
be open with 坦白，毫无隐瞒Please be open with me. 请对我坦白。He's frank and open with people.他为人坦率。
into the open adv.公开化,出现
in the open adv.在野外
Open As 以...打开
open into v. 通向
an open verdict 死因未定的裁决
OPEN 打开指令
open a.1.开着的2.敞开着门（或篷等）的；无遮盖的；不用墙（或篱等）围起的3.空旷的；开阔的4.散开的；稀疏的；稀松的5.未封的；未包裹的；未系扎的6.（道路等）可通行的，无障
granulocytopenia 粒细胞减少; 颗粒细胞减少症
lipopenic 脂肪减少的
megalopenis 巨阴茎; 巨阴茎
micropenetrometer 微针入度计
micropenis 小阴茎
neutrocytopenia 中性白细胞减少
Copenhagen n. 哥本哈根
cyclopentane n. [化]环戊烷
这些形容词都有“空的”之意。
empty 指空无一人或一物，或空洞无意义的。
vacant 普通用词，侧重某物或某个位置没有被占用。
hollow 指物体中间是空的。
blank 指上面没有写字、印刷或做记号的空白表面，或指上面留着准备被填写的空白处。
open 指未被占有，从而可被别人得到的。
这两个动词均有“打开”之意。
unfold 主要指把原来包好、卷好或叠好的东西再打开。
open 普通用词，指把原来关起来或盖紧的东西打开。
