Meaning of the word "lend weight" in English

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

lend weight

US /lɛnd weɪt/
UK /lɛnd weɪt/

Idiom

to make something seem more credible or important

Example:
The expert's testimony will lend weight to our argument.
New evidence has emerged that could lend weight to the prosecution's case.