None
None
None
replace
replace
The root that this is based on is the basis and grounds for my argument. Look, it goes all the way down to the root problem!
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
彼が高所恐怖症だと思ったのには何か根拠があるんですか？
What basis is there for you to think that he has a fear of heights?
An update is needed before you can continue but you have more than one WaniKani tab open.
Finish up whatever you are doing on the other tab(s), then close them to continue.
The update will complete automatically once the other tab(s) are closed.