
[BOR]
0: Safe
1: Please only post links to actual news sources, no tabloid sites, etc
2: No NSFW content
3: No hate speech, bigotry, propaganda, etc

[EOR]
[BOC]
用いる basically means "employ" in the sense of "plying"/"applying" a thing to a particular task or purpose.

After reading OP's question I suddenly suspected that the word might actually be 持つ＋入る（いる）or something like that. It turns out [that it is](http://dictionary.goo.ne.jp/leaf/jn2/219273/m0u/%E7%94%A8%E3%81%84%E3%82%8B/), except the いる part is a different verb 率(い)る.
[EOC]
