adherence

noun4

1. •
   Faithful support for some cause.

   • Strict adherence to the rules is required.
   • The project failed because of poor adherence to deadlines.
2. •
   An extent to which a patient continues an agreed treatment plan.
3. •
   The fulfilment of the legal obligation of residing with wife or husband.
4. •
   A close physical union of two objects.