Used as a na-adjective to describe a choice or option that is better or more desirable than another. Common in comparative contexts.
このプランの方がベターだと思う。
I think this plan is better.
It's better to leave early.
Acting early is the preferable choice.
Let's think of a better method.
This proposal is better than the previous one.
better half; spouse
Loanword from English 'better', used as a na-adjective in Japanese.