What is the meaning of Meg?

Any unit having the SI prefix mega-.

a dollar

a nutmeg

To nutmeg an opponent.

A megalodon.

million, 10

me, accusative singular of eg (I)

and

plus (sum of the previous one and the following one)

we; nominative plural of minā

objective case of jeg: me

objective case of eg: me (direct object of a verb)

Alternative form of mik (Late Old Swedish)

May

Source: wiktionary.org