一口

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

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

mouth / classifier for things with mouths (people, domestic animals, cannons, wells etc) / classifier for bites or mouthfuls

one breath / in one breath / at a stretch

to arbitrarily assert / to allege / to stick to one's statement / to cling to one's view

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

to gasp (with amazement or shock etc) / to feel a chill run down one's spine / to have one's hairs stand on end

to gasp (in surprise, dismay, fright etc)

to make a false countercharge

lit. one-track path; fig. to adopt a unified approach to discussing an issue / to sing from the same hymn-sheet

to heave a sigh of relief

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