www.thefreedictionary.com/reinforce www.thefreedictionary.com/enhanced www.thefreedictionary.com/promote This is a great resource for learning words.

Reinforce means to make something stronger or better. Enhance means to make something better. An example is if you were to go on a date, you would enhance yourself to look good for the other person. Promote means to improve or make better too. Promote is a word commonly used in employment when you move up to a better position. These words are generally very similar but are used in different context. When speaking, you would never say that you just got reinforced in your job.

All three are totally different 1. reinforce is to strengthen with additional personnel, material or support 2.enhanced is to raise the value or quality of the thing like make it better. 3.promote is advancement in rank or popularity etc