Free Dictionary在线词典 http://www.freedictionary.org/?Query={w}
韦氏在线词典 https://www.merriam-webster.com/dictionary/{w}
必应在线词典 https://cn.bing.com/dict/search?q={w}
柯林斯在线词典 https://www.collinsdictionary.com/search/?dictCode=english&q={w}
Urban Dictionary https://www.urbandictionary.com/define.php?term={w}
剑桥词典 https://dictionary.cambridge.org/dictionary/english/{w}
Dictionary.com在线词典 https://www.dictionary.com/browse/{w}
朗文当代英语在线词典 https://www.ldoceonline.com/search/english/direct/?q={w}
Ox Living Dict https://www.lexico.com/en/definition/{w}
macmillan https://www.macmillandictionary.com/dictionary/british/{w}
oxfordlearners（网址写法待定） https://www.oxfordlearnersdictionaries.com/definition/english/{w}_1?q={w}