for me what works the best is that I would write the word in a sentence and keep in a note or paper that I check maybe for a couple of days , and then it kinda sticks to my mind I don't need the note anymore !

Use a notebook. Write the definition and part of speech (noun, verb, adjective, etc.) Create a new sentence with your vocabulary word. Ask someone to review your new sentence to see if you are using the word correctly.

In my own language studies, what makes the difference is making the words relevant to me. If I look up a word because I read in some random article, there is a better chance that I will forget it. But, if I look up a new word and then use it to discuss, write about and think about things that are deeply important to me, then the chances of forgetting it are reduced. So, one key is to make the words part of your life. Secondly, make sure that you are using the words in important relationships with people who speak your target language. For example, if I learn a word for my teacher as part of an assignment, I might remember it. But, I'm much more likely to remember the word if it has become part of communications with a personal friend. So, if you can, make friends with people who speak your target language. All that being said, if I have a test tomorrow on a list of vocabulary, what works best is flashcards. But, I'll probably forget most of those words after the test.

I only memorize a new word when I see it in different places and time. For exemple, I read a new word in a book and then I hear someone pronounce it in a movie. I think only this kind of repetition can make you learn how to use a word in different situations.

Awise man once saied that , " science is a bird , writning is his hunter "