Meaning of the word "beef up" in English

What does "beef up" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

beef up

US /biːf ʌp/
UK /biːf ʌp/

Phrasal Verb

to make something stronger, more effective, or more substantial

Example:
The company decided to beef up its security measures after the recent cyber attack.
They need to beef up their customer service department.