Which is The Right Word to Use For “better” ‘than’ or ‘then?’ Is it ‘better Than’ or ‘better Then?’

You may get confused a lot between than and then because there is only a difference of 1 letter but which one is the correct to phrase to use ‘better than’ or ‘better then?’ the write phrase to use in context is ‘better than.’

Example:

My lunch today was better than yesterday.

He is much better at mathematics than physics

I do understand what you are saying but that does not make you any more of an innocent than June.