1. The wife or widow of a kaiser (German or Austrian emperor).
Usage: historical; often capitalized when referring to a specific historical figure
2. A woman who rules as kaiser; a female kaiser.
Usage: rare; historical

Examples

• The kaiserin consort attended the state ceremony in Vienna.
• Kaiserin Elisabeth was known for her beauty and intelligence.
• After the emperor's death, the kaiserin withdrew from public life.
• The kaiserin's influence on imperial policy was significant during her husband's reign.
• Historical records describe the kaiserin's patronage of the arts.