Answer:

mem

Answer	Crossword Clue
MEM	Button on some calculators
MEM	Part of RAM: Abbr.
MEM	Dues payer: Abbr.

MEM	Part of an org.
MEM	One of the gp.
MEM	Dues payer (abbr.)
MEM	13th Hebrew letter
MEM	Hebrew letter
MEM	House rep.
MEM	Hebrew letter.
MEM	Letter in the Hebrew alphabet.

MEM	Thirteenth Hebrew letter.
MEM	Lady sahib.
MEM	Hebrew M.
MEM	Lady Sahib.
MEM	...-sahib.
MEM	... sahib
MEM	Before nun
MEM	Nun's predecessor

MEM	Lamed follower
MEM	Thirteenth Hebrew letter
MEM	One in a club: Abbr.
MEM	One on the rolls: Abbr.
MEM	Hebrew letter after lamed
MEM	One with dues: Abbr.
MEM	Common calculator button
MEM	Part of a grp.

MEM	Hebrew letter before nun
MEM	Abbr. for the Grizzlies, on scoreboards
MEM	Org. dues-payer
MEM	Person who belongs to an org.
MEM	Gp. dues-payer
MEM	One paying dues: Abbr.
MEM	Part of RAM
MEM	Lincoln or Jefferson: abbr.

MEM	Jefferson or Lincoln, in D.C.
MEM	Palindromic Hebrew letter