reinforce
🇺🇸
/ˌriːɪnˈfɔːrs/
🇬🇧
/ˌriːɪnˈfɔːs/
to make a feeling or idea stronger
Winning the award will reinforce his confidence in his abilities.
to make something stronger by adding support
They used steel beams to reinforce the old bridge structure.
to send more people or equipment to make a group stronger
The army will reinforce the border with additional troops.