partly; about half; halfway; incomplete or not fully

used in the idiom 半间不界 bàn​gān​bù​gà, meaning halfway; neither one thing nor the other

Negative adverb used before verbs, adjectives, and other adverbs to indicate negation; also used as a bound-form prefix to form terms with opposite meanings

(bound form) a boundary, border, or limit; a place where two areas meet