Grammar fix
what's more
further supporting point
Used to introduce another fact that makes the previous point stronger.
expression
How oftenCommon
LevelB2
Used inSpeech & writing
Hear it in context
Notice where the phrase sounds natural.
The course is affordable, and what's more, you can attend it online.
I prefer studying in the library because it is quiet, and what's more, I can find all the books I need there.
Fix the pattern
One small grammar move makes it sound right.
Not: The coffee is great, and what more, they stay open late.
Say: The coffee is great, and what's more, they stay open late.
Keep 'what's' (what is): 'what more' on its own is a question.
Don't confuse it
Other ways to say it
Add another strong point
How formalConversationalFormal
on top of thatAdds another benefit or problem to those already mentioned.not to mentionAdds another strong point, usually followed by a noun phrase.
what's moreYou're here · Introduces another fact that reinforces your argument.