To not forget (to do something required)
To give (a person) money as a token of appreciation of past service or friendship.
To memorize; to put something into memory.
To keep in mind, be mindful of
to commemorate, to have a remembrance ceremony
To convey greetings from.
To engage in the process of recalling memories.
To recall from one's memory; to have an image in one's memory.
To keep in possession or use.
To employ by paying a retainer.
To hold back (a pupil) instead of allowing them to advance to the next class or year.
To keep in one's pay or service.
To hold secure.