to sound out; to try to find out or understand through exploration; to probe

Used between a verb and its result to show that the action cannot achieve that result; used as the negative form of the 得 de potential construction

Used after a verb to show that an action was successful or reached its goal; meaning "hitting the mark".

(bound form) way to do something; knack; key to a problem

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.