1
- a long, thin, flat piece of wood or other hard material, typically used for floors or other building purposes（尤指作地板、建筑等用的）长而薄的木板（或板材）：
loose boards creaked as I walked on them
我走在松动的地板上, 脚下嘎吱嘎吱地直响
mass noun sections of board.木板截面。
1.1
the boards
informal the stage of a theatre〈非正式〉（剧院的）舞台。
1.2
the board
Austral./NZ the part of the floor of a shearing shed where the shearers work〈澳/新西兰〉剪羊毛工棚的地板。- ORIGIN: late 19th cent.: originally boards running alongside the pens.
2
- a thin, flat, rectangular piece of wood or other stiff material used for various purposes, in particular长方形板, 尤指：
2.1
- a vertical surface on which to write or pin notices（书写或用大头针钉告示或通知的）布告牌, 告示板。
2.2
- a horizontal surface on which to cut things, play games, or perform other activities案板; 游戏台; 平台。
2.3
- a flat insulating sheet used as a mounting for an electronic circuit电子线路板盘：
a graphics board.
制图板。
2.4
- the piece of equipment on which a person stands in surfing, skateboarding, snowboarding, and certain other sports滑板; 冲浪板; 滑冰板; 滑雪板。
2.5
boards
pieces of thick stiff card used for book covers（制作书籍封面的）厚纸板。
2.6
boards
the structure, typically of wood surmounted with panels of glass, surrounding an ice-hockey rink冰球场周围的护板。
3
- treated as sing. or pl. a group of people constituted as the decision-making body of an organization委员会; 理事会; 董事会：
he sits on the board of directors
他是董事会董事
in names the English Tourist Board英国旅游局
as modifier a board meeting.理事会全体会议。
4
- mass noun the provision of regular meals when one stays somewhere, in return for payment or services膳食, 伙食：
board and lodging.
食宿。
4.1
- count noun archaic a table set for a meal〈古〉餐台, 饭桌。
5
- Sailing a distance covered by a vessel in a single tack【航海】抢风航行的一段里程。
1
- with obj. get on or into (a ship, aircraft, or other vehicle)上（船、飞机等）：
we boarded the plane for Oslo
我们登上了去奥斯陆的飞机
no obj. they would not be able to board without a ticket.他们没有票就不能登机。
1.1
be boarding
(of an aircraft) be ready for passengers to get on（飞机）开始登机：Flight 172 to Istanbul is now boarding.
飞往伊斯坦布尔的172航班开始登机。
2
- no obj. live and receive regular meals in a house in return for payment or services住宿搭伙, 食宿：
the cousins boarded for a while with Ruby.
有一阵子表兄弟们在鲁比家里搭伙住宿。
2.1
- (of a pupil) live in school during term time in return for payment（学生）住校, 在学校寄宿。
2.2
- with obj.（一般作be boarded）provide (a person or animal) with regular meals and somewhere to live in return for payment为（人, 动物）提供食宿：
dogs may have to be boarded at kennels.
狗也许只好在狗窝里吃喝拉撒。
3
- with obj.(board something up/over) cover or seal a window, shop, or other structure with pieces of wood用板封住（窗户、商店等）：
the shop was still boarded up.
商店仍然封着。
4
- no obj. ride on a snowboard滑雪。
短语
go by the board
- (of something planned or previously upheld) be abandoned, rejected, or ignored（计划或坚持的事情）被放弃; 荒废; 被拒绝：
my education just went by the board.
我的教育荒废了。
ORIGIN: earlier in nautical use meaning 'fall overboard', used of a mast falling past the board, i.e. the side of the ship.
on board
1
- on or in a ship, aircraft, or other vehicle在船（或飞机等）上。
1.1
- informal on to a team or group as a member〈非正式〉成为成员, 加入：
the need to bring on board a young manager.
吸纳一位年轻经理的需要。
1.2
- informal (of a jockey) riding〈非正式〉（职业赛马骑师）骑马。
take something on board
- informal fully consider or assimilate a new idea or situation〈非正式〉充分考虑, 完全采纳。
tread（或walk）the boards
- informal appear on stage as an actor〈非正式〉（作为演员）上台表演。
词源
Old English bord, of Germanic origin; related to Dutch boord and German Bort; reinforced in Middle English by Old French bort 'edge, ship's side' and Old Norse borth 'board, table'.