usher in

Từ điển WordNet v3.1 - WordNet Dictionary

verb

be a precursor of (Freq. 1)
- The fall of the Berlin Wall ushered in the post-Cold War period
• Syn:
inaugurate, introduce
• Derivationally related forms:
augury (for: inaugurate)
• Hypernyms:
begin, lead off, start, commence
• Verb Frames:
- Something ----s something