re‧in‧force W3 AC / riənfɔs, riɪnfɔs $ -fɔrs / 动词 [及物动词]

1 to give support to an opinion, idea, or feeling, and make it stronger :

The film reinforces the idea that women should be pretty and dumb.

2 to make part of a building, structure, piece of clothing etc stronger

3 to make a group of people, especially an army, stronger by adding people, equipment etc