border on।।

✍🏻Meaning:- If something like an action or an attitude borders on something more extreme, it is close to being that extreme.

👉🏻Synonym:- verge on, come close to

For example:-

border on sth

👉🏻His fear of the government borders on paranoia.

border on sth

👉🏻The fanatical excitement you see at some political rallies in the south borders on mass hysteria.

👉🏻Note:- Almost always used in relation to a negative extreme, though occasionally it's used in a more positive context, as in "his talent borders on genius".