Frankly? "It would be unlikely to find knave and memorandum in the same sentence."
A knave means a dishonest man. Example sentence: He is not only a fool, but also a knave.
A knave is a dishonest man. Example sentences: Surrender your sword or my archers will skewer you, knave! That sneaky knave is hiding somewhere in this very nave.
I will write a memorandum thanking all the committee members for their efforts.
Kindly refer to the memorandum of understanding when asking for certain privileges.
"He was glad to see the memorandum from the Main Office stating that Friday would be a 'casual' day".
The boss issued thousands of memorandums.
"knave" is a noun.
The homophone for knave is nave.
A knave is someone who is not honest. A knave is also known as the jack in a deck of playing cards.
A Kestrel for a Knave was created in 1968.
The definition of "knave" is "a dishonest or unscrupulous man". It would therefore be very rude to call someone a "knave". However "knave" is also the name given to one of the face cards in a pack of cards eg "the knave of spades" . So using the word "knave" to describe this card is perfectly OK.
Barry Hines wrote A Kestrel for a Knave.