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Jyutping sung3 wan1 nyun5
Pinyin sòng wēn nuǎn

Definitions (Wiktionary)
  1. verb, bureaucratese, verb-object
    to send help (to the needy); to provide assistance (to those in financial difficulty)
  2. verb, euphemistic, ironic, of the police, slang, verb-object
    to pay a visit (to someone) at their house