單

adjective: single; individual; solitary, list; register; bill
單

1 candidate reading from Wiktionary — genuine Chaozhou colloquial form not yet confirmed by a speaker. The dossier ties duan1 to the common sense 'single; individual', while the literary readings siêng5/siang5/siêng6/siang6 are attested only for a separate, rare surname/place-name sense, so this headword was split into two sense-specific entries.