用いる

(1) 業務に入れられる特定の目的のために、または、それ固有のあるいは自然な目的のために仕事または雇用を作る(put into service; make work or employ for a particular purpose or for its inherent or natural purpose; "use your head!"; "we only use Spanish at home"; "I can't use this tool"; "Apply a magnetic field here"; "This thinking was applied to many projects"; "How do you utilize this tool?"; "I apply this rule to get good results"; "use the plastic bags to store the food"; "He doesn't know how to use a computer")(put into service)(make work or employ for a particular purpose or for its inherent or natural purpose)

⇒彼はコンピューターの使い方を知らない(make work or employ for a particular purpose or for its inherent or natural purpose)

(2) だれかの原因、イデオロギー、習慣、方法を始める、自分自身のものとしてそれを使う(take up the cause, ideology, practice, method, of someone and use it as one's own; "She embraced Catholicism"; "They adopted the Jewish faith")(take up the cause, ideology, practice, method, of someone and use it as one's own)

⇒彼らはユダヤ教を採用した(take up the cause, ideology, practice, method, of someone and use it as one's own)

(3) を利用する(avail oneself to; "apply a principle"; "practice a religion"; "use care when going down the stairs"; "use your common sense"; "practice non-violent resistance")(avail oneself to)

⇒非暴力の抵抗を実行する(avail oneself to)