空

noun: free time; spare time, vacant; unoccupied, gap; interval
空

3 candidate readings were extracted from Wiktionary for 空, but they split across two distinct pos/etymology blocks on the source page. This entry covers the 'free time; vacant; gap' sense, which attests 2 of the 3 candidates (kong1, kang3) — kang1 belongs to the other sense and is dropped here; see the separate entry for that sense. Genuine Chaozhou colloquial form not yet confirmed by a speaker.