adj (1) 空的，没有人(东西)的(containing nothing; having nothing inside)：an～box/lorry/tank 空盒子/空卡车/空水箱; The glass/house is～. 杯子是空的/房子没人居住。Our voices echoed in the～house. 我们的声音在空房子中回荡。It's gradually getting～. 它渐渐地空了。The streets were almost～(of traffic). 大街上几乎空无一人(没有车辆)。The suitcase was very light to carry，being～except for two shirts. 箱子里只有两件衬衣，提起来很轻。〖同〗 vacant，unoccupied，uninhabited，bare; 〖反〗 full，stuffed，packed，occupied，inhabited;

(2) 空洞(虚)的，没有意义(目的)的(completely without; lacking sense or purpose) [作pred]，[A(of)] (fml)： The sentence is～of ideas/of meaning. 这句话没有意义。He didn't want to retire and lead an～life. 他不想退休去过那种空虚的生活。a life～of adventure/of happiness 没有冒险/没有幸福的生活;～boast/compliments/pleasures/promise 愚蠢的大话/空洞的赞美之词/无谓的享乐/空虚的诺言; feel lonely and～感到孤独和空虚; 〖同〗 aimless，meaningless，insignificant，purposeless;〖反〗 meaningful，significant;

(3) 空肚子的，(饥)饿的 (needing food; hungry) (infml)： be/feel～饿/感到饥饿的; an～stomach 空腹; 〖同〗 hungry; 〖反〗 full;

on an empty stomach 空腹; 饿肚子：go to work on an～stomach 饿着肚子去上班; You shouldn't drink/take medicine on an～stomach. 你不应该空着肚子喝酒/吃药。

→′emptily adv 空着(虚)地;′emptiness n 空虚;

v (1) 弄(腾、用)空; (make or become empty) [T+n，T+n+prep(of/onto/into)，T+n+adv(out)，I，I+prep(of)]：～a glass/a house/a city 把杯子倒空/搬空房子/撤空城市;～out one's pockets 把口袋掏空; The cinema～ed (of people) at 10：30/in five minutes/quickly. 电影院里的人在10点半/五分钟之内/很快便走光了。She～ed her money out of her purse to find the right change. 她把钱从钱包里倒出来找零钱。The dustbins were～ed every day. 垃圾桶每天都被清理一空。〖反〗 fill，pack，stuff;

(2) 倒入(进，出来) (remove the contents of a container or put the contents of sth into sth else) [T+n，T+n+prep(into/onto)，T+n+adv (out)]：～the contents of a can into the pot /onto the floor 将罐里的东西倒进锅里/撒到地板上;～water down the drain/into the bucket/onto the garden/over the intruder 将水倒入下水道/倒进桶里/浇到花园里/泼到闯入者的身上;

(3) (使)流入，注(涌)入(discharge or flow) [T+n+prep(into)，I+prep(into)]：The Mississippi～ies into the Gulf of Mexico. 密西西比河流入墨西哥湾。The crowd～ied into the street. 人群涌向大街。〖同〗 discharge，flow;

→′emptiable adj 可腾空的;

n 空箱(车、瓶等)(something that is empty，such as an empty container，freight car，bottle，etc) [pl] (infml)：put/take the～ies on the doorstep 将空瓶子放在台阶上; take the～back to the shop 将空箱子送回到商店; The milkman collects the～ies every morning. 送奶员每天早晨把空瓶子收回去。

【辨异】empty与blank和vacant的区别见BLANK。