instant
/ˈɪnstənt; `ɪnstənt/ adj
1 [usu attrib 通常作定语]
coming or happening at once 立即的; 立刻的
a new book that was an instant success 一出版就大获成功的新书
feel instant relief after treatment 医治後随即感到舒服了
instant hot water, ie as soon as the tap is turned on 瞬间致热的水（一开龙头水就热）.
2 (of food preparations) that can very quickly and easily be made ready for use （指食品的制备）调制快速方便的, 速成的
instant coffee, ie made by adding hot water or milk to a powder 速溶咖啡.
3 (abbr 缩写 inst) (dated commerce 旧, 商) (after dates 用於日期之後) of the present month 本月的
in reply to your letter of the 9th inst 兹覆本月9日来函.
4 [attrib 作定语]
(fml 文) urgent 紧急的; 急迫的
attend to sb's instant needs 满足某人紧急的需要
in instant need of help 在需要紧急援助时.
instant / ˈɪnstənt; `ɪnstənt/ n (esp sing 尤作单数)
1 precise point of time 当时
Come here this instant! ie at once! 马上到这里来!
He left (at) that (very) instant. 他立刻离开了.
leave on the instant of six o'clock, ie not a second later than six 六时整离开
I recognized her the instant (that) (ie as soon as) I saw her. 我一眼就认出是她.
2 short space of time; moment 顷刻; 刹那; 瞬间; 片刻
I shall be back in an instant. 我马上就回来.
Help came not an instant too soon. 援助来得正是时候.
Just for an instant I thought he was going to refuse. 我脑中有一闪念, 以为他要拒绝了.