What is the meaning of Mega?

Very large.

Great; excellent.

extremely

A megararity (extremely rare bird for a certain region).

The Steinhaus-Moser number

very

Romanization of ᬫᬾᬖ.

to be able to

must, may

Clipping of megabyte.

million

very

millionth

must, may

Ellipsis of megatavu (megabyte).

Ellipsis of megabitti (megabit).

very, super

awesome, amazing

to be allowed, to be permitted, to may [intransitive or with accusative]

must, to have to

to have the strength, to be able

Synonym of awan (cloud)

Dated spelling of méga. Romanization of ꦩꦺꦒ

Synonym of awan (cloud)

awesome, great, cool

awesome, great, cool

very, super (intensifier)

Clipping of megabyte.

Clipping of mega hair.

Clipping of megabyte.

feminine singular of mego

Alternative spelling of méga

Source: wiktionary.org