• A person employed to instruct another in some branch or branches of learning, especially a private instructor.
  
• A teacher of academic rank lower than an instructor in some American universities and colleges.
  
• A teacher without institutional connection who assists students in preparing for examinations.
  

"WBT" stands for Web-Based Training and refers to "online course" or "Web-based instruction" that offers material on the internet, applying ICT tools. Commonly WBT is being seen as a subset of Computer-Based Training (CBT).

To obtain an overview of advantages of WBT, please click here.