It's time to vary your vocabulary and expand your choice of words.
Synonym - the same meaning, or nearly the same meaning, but a different spelling. e.g. excellent is a synonym for good.
Antonym - the opposite meaning. e.g. hot is the opposite of cold.
Use the posters to prompt you if you forget.
1 star - Tricky
2 stars - Trickier
3 stars - Trickiest