1. Having much knowledge or education
   "the informed customer"; "an informed public"; "informed opinion"

1. Impart or communicate information or knowledge (to someone)
   "I informed him of his rights"
    
2. Give character or essence to
   "The principles that inform modern teaching"
    
3. Act as an informer
   "She had informed on her own parents for years"

See also: abreast, advised, apace [N. Amer], au courant, au fait, conversant, educated, enlightened, familiar, hep [archaic], hip [informal], hip to, knowing, knowledgable, knowledgeable, privy, sophisticated, switched on [informal], up on, well-read, wise, wise to

Type of: alter, change, communicate, intercommunicate, modify

Antonym: uninformed

Encyclopedia: Inform