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
Maud Younger (y) forgot her keys to the space station (Ø1), all she brought outside was her flute (一). She has no choice but to crash the door with the giant flute.
一 character breakdown
The character 一 cannot be broken down into individual components.
the name of various contactless smartcards, notably Yikatong (mainly for public transport in Beijing) and iPASS (mainly for public transport in Taiwan)