I am working on an Android app where we add post with some tags like in Stack Overflow. I observed that people in my app add tags with different patterns like they use technology as tech, techno, technologies or startup, start up or start-up so when they do something like this then sorting post on searching is a challenge. I mean when they search for startup they cannot see post tagged with start up or start-up.
So I thought to change the edittext where users write tags to an autoCompleteTextView so now they must have to add tags from the list provided in the app. But for the list of words I need a list/array of strings but I can't include them in my app as there are millions of words and they will increase the size of the app up to 5 to 6mb. So I want a free API for my app.