SpellingCity is easily one of the best sites around for Spelling & Vocabulary. This is a site used by educators around the world looking to help students learn their vocabulary and spelling words. This is done by teachers using word lists to help enforce skills. These lists can be custom made and even imported into educational games to help reinforce learning. Also, there is an educational portal (i.e. student tracking, etc) and mobile app that allows students to learn on the go.
I highly recommend checking out SpellingCity by clicking here!!!
*SpellingCity is an advertiser of Technology Tidbits.