Remember
Part of speech: verb
Definition: To recall from one's memory; to have an image in one's memory. To memorize; to put something into memory. To not forget (to do something required) To convey greetings. To put in mind; to remind (also used reflexively) To engage in the process of recalling memories.
Example sentence: Just remember, you can't climb the ladder of success with your hands in your pockets.
Commemorate
Part of speech: verb
Definition: To honour the memory of someone or something with a ceremony.To serve as a memorial to someone or something.
Example sentence: The memory of Audrey is in my innermost mind. And I don't need a foundation to commemorate her. That's perhaps a bonus, if you like.