What does Semper Fi and Semper Paratus mean?

Semper Fi is short for Semper Fidelis which means Always Faithful (to your God, to your family, to your country, and to your fellow Marines), while Semper Paratus means Always Prepared.

Semper Fi is short for Semper Fidelis which means Always Faithful.

Semper Paratus means Always Prepared.