strengthen

/stɹˈɛŋθən/

/ˈstɹɛŋθən/

to strengthen

MAIN VERB

to make something more powerful or become so

synonyms : beef up

antonyms : weaken

gain strength

antonyms : weaken

give a healthy elasticity to

synonyms : tone

Examples

1. The physical therapist recommended exercises to strengthen weak muscles.

2. Regular exercise can help strengthen the muscles around the backbone.

3. She did exercises to strengthen her back muscles.

4. He performed knee exercises to strengthen the muscles around the joint.