How do you pronounce 非空?

Q: How do you pronounce 非空? A: fei1 hung1, e.g.

非空 (fei1 hung1) — meaning, pronunciation, examples

非空 (fei1 hung1, fēi kōng) — (math.) (of a set) non-empty; (computing) (of a data structure) non-empty

非士 (fei1 si2) — face
非常之 (fei1 soeng4 zi1) — very
非常會議 (fei1 soeng4 wui6 ji5) — extraordinary session; meeting
非常重要 (fei1 soeng4 zung6 jiu3) — very; extremely important
非法入境者 (fei1 faat3 jap6 ging2 ze2) — an illegal immigrant
非法移民 (fei1 faat3 ji4 man4) — illegal immigration