inform inform /ˌɪnˈfɔrm/

verb

1. () Impart knowledge of some fact, state of affairs, or event to  ( inform )
   impart knowledge of some fact, state of affairs, or event to
    I informed him of his rights
   I informed him of his rights
   
2. () Give character or essence to  ( inform )
   give character or essence to
    The principles that inform modern teaching
   The principles that inform modern teaching
   
3. () Act as an informer  ( inform )
   act as an informer
    She had informed on her own parents for years
   She had informed on her own parents for years