Homographs (words that look alike but have different meanings i.e. glasses you wear and glasses from which you drink, a watch that you wear and the act of looking: to watch a tv)
root words + prefix/suffix
Abbrieviations
Proper nouns
-ly suffix (i.e. kindly, happily, friendly)
Spelling support:
"When Two Vowels Go Walking" https://youtu.be/7fb3Pdt8kxg
"Trains and Brains and Rainy Plains" https://youtu.be/_fzF7vVgY4Y