非空

Traditional form:

非空

Pinyin (reading):

fēikōng

Definitions:

• (math.) (of a set) non-empty; (computing) (of a data structure) non-empty

Characters:

• 非 - not, negative, non-; to oppose
• 空 - hollow, empty, deserted, bare

Traditional characters:

• 非 - not, negative, non-; to oppose
• 空 - hollow, empty, deserted, bare