Libgdx在Json文件中搜索文本

I am developing a word game with libgdx and I have a word list to use in my game. I need to keep this words in app. I can't not use SQLite because I also want my game work on IOS. So I decided to use Json and I used code below. In my json file there are one hundred thousand words.I am developing a word game with libgdx and I h