once; one time; awhile | Often after a verb to indicate a short moment and sometimes shortened to just 下 (which the HK media inexplicably writes as 吓)| eg. 等一下; 講(一)下嘢; 睇下; 瞓一下 | Mand.-only synon.: 一會兒

all at once; at one fell swoop | Synon.: 一下子

wait a while; wait a moment | Mand. also: 等一會兒 | Cant.: 等一陣 | Note: Often written by HK print media as '等一吓' where '吓' is a coined character for the purpose of the pronunciation /haa5/ in the mistaken belief that '下' can only be pronounced /haa6/. To add to the confusion, '吓' is also the official simplified version of '嚇'.

a little bit | Cant.: 一啲 | Syn.: 一點; 一點兒

same as 一下; 一下子; 一會兒 - in a while; in a short time

all at once; all of a sudden [] Cant.: 一下

in a short while

to reconfirm [colloquial]