noun, noun or participle which takes 'suru', transitive verb, intransitive verb
rephrasing; putting another way
Formal noun and suru-verb used when restating something in different words. Often appears in the fixed phrase 換言すれば (in other words).
See also: 換言すれば
この文章を換言すると、もっとわかりやすくなる。
If you rephrase this passage, it becomes easier to understand.
換
In other words, that means it's impossible.