an omen or sign indicating that something is about to happen

a sign or prior indication of something that is yet to occur

a sign or portent of a future event, typically indicating whether it will be favorable or unfavorable

omen; sign

a sign or warning that something, especially something momentous or calamitous, is about to happen

ill omen

a bad omen; an inauspicious sign

megabyte (2^20 or approximately a million bytes)

megacycle (MC), equivalent to 1,000,000 Hz

metric prefix representing one billion (10⁹) or 2³⁰ in computing contexts

a sign or indication that something is about to happen

In computer networking, 100 megabits per second or 100Base-T.

mega electron volt (MeV) (unit of energy equal to 1.6 x 10⁻¹³ joules)

the capital of a country