一次

first / first time / once / (math.) linear (of degree one)

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

next in sequence / second / the second (day, time etc) / secondary / vice- / sub- / infra- / inferior quality / substandard / order / sequence / hypo- (chemistry) / classifier for enumerated events: time

one-off (offer) / one-time / single-use / disposable (goods)

repeatedly / over and over again

linear equation

linear equation (math.)

unfamiliar at first but you get used to it / strangers are first meeting, but soon friends / an acquired taste

lump-sum (finance)

to take sth as a lesson for next time (idiom) / once bitten, twice shy

next

many times / on more than one occasion

linear function (math.)