If you more often use your words, you remember them better! You could use them in speech or do exercises. Can put a list with some words on the fridge, as well.

Repetition is the key to learning. It has been scientifically proven that we remember only 10% of what we hear. So, the number of times you hear something will determine the amount you remember. If you want to remember a word, write it down and repeat it outloud every day for ten days. It will be committed to memory at the end of that time.