As a Noun: 1. The act of greeting someone in a friendly way when they arrive somewhere. English = welcome. As a Verb or Adjective: 1. To greet someone in a friendly way when they arrive somewhere. English = to welcome. 2. To be friendly and welcoming to guests and strangers. English = (be) welcoming, (be) hospitable. Interactive: 1. Used alone when welcoming someone to tell them to come inside a room or building. English = 'Come in!' 2. Used alone to encourage someone to do or to say something. English = 'Come on!'