- 一 numeraloneone; the number 1; single; alone
- 阵 陣 numeral[short duration]Used for events, states, or natural phenomena that last for a short period of time, such as a burst of rain, a round of applause, or a spell of pain.
- 儿 兒 particleaffix[erhua suffix]A suffix attached to a word to form a retroflex ending, often indicating a small size, a sense of familiarity, or turning a word into a noun.