1. 使用：使你了解此事Enlighten You on This Matter | 使用Utilise | 使用年限Service Life

2. 利用：investment 投资 | utilise 利用 | outmoded 过时的,不入时的

3. 实用：utility 效用,实用 | utilise 实用 | utilize 利用

4. 功效、利用：visualise 可见到的 visualize | utilise 功效、利用 utilize | socialise 社交的 socialize

1. -> see utilize

1. put into service
    make work or employ for a particular purpose or for its inherent or natural purpose

    e.g. 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

    Synonym: useutilizeapplyemploy