Definition of usher in Usher in

We found 3 definitions of usher in from 2 different sources.

What does usher in mean?

Verb
usher in - be a precursor of; "The fall of the Berlin Wall ushered in the post-Cold War period"
		inaugurate, introduce
		lead off, commence, begin, start teach immoral behavior to; "It was common practice to lead off the young ones, and teach them bad habits"