Domestic violence and abuse: new definition
The cross-government definition of domestic violence and abuse is:
any incident or pattern of incidents of controlling, coercive, threatening behaviour, violence or abuse between those aged 16 or over who are, or have been, intimate partners or family members regardless of gender or sexuality. The abuse can encompass, but is not limited to:

  • psychological
  • physical
  • sexual
  • financial
  • emotional
https://www.gov.uk/guidance/domestic-violence-and-abuse

The NSPCC offers advice on domestic abuse affecting under 16s