一

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

one breath / in one breath / at a stretch

to get sth off one's chest

a hundred answers to a single call (idiom) / to respond en masse

variant of 一股腦兒|一股脑儿[yi1 gu3 nao3 r5]

a line of verse / a sentence

in a word / in short

one week / all the way around / a whole cycle

one command brings a hundred responses (idiom); having hundreds of attendants at one's beck and call

to die (idiom) / to breathe one's last / to give up the ghost

readily / flatly (deny, admit and so on) / a mouthful / a bite

lit. you cannot get fat with only one mouthful (proverb) / fig. learn to walk before you run

lit. to want to get fat with only one mouthful (proverb) / fig. to try to achieve one's goal in the shortest time possible / to be impatient for success

erhua variant of 一口氣|一口气[yi1 kou3 qi4]