What is the meaning of Mem?

The thirteenth letter of many Semitic alphabets/abjads (Phoenician, Aramaic, Hebrew, Syriac, Arabic and others).

Clipping of memory.

A white European woman, especially the wife of an official; a memsahib.

Alternative form of ma'am

meme (unit of cultural information)

meme (unit of cultural information)

mem (thirteenth letter of the Hebrew and Phoenician scripts and the Northwest Semitic abjad)

even, still (in comparison)

(emphasis) really, indeed

mem, specifically:

the name of the Phoenician-script letter 𐤌

the name of the Hebrew-script letter מ/ם

meme (unit of cultural information)

meme (something copied and circulated online)

a meme (unit of cultural information)

Source: wiktionary.org

See also