As nouns the difference between allegiance and royalism
is that allegiance is loyalty to some cause, nation or ruler while royalism is impassioned allegiance to or advocacy of the establishment, maintenance, and/or interests of a particular king, royal house, or kingly dynasty; sometimes extended to the same of a non-royal (i.e., grand ducal, imperial, or other) family or sovereign; often contrasted with {{term|monarchism|lang=en}}.
allegiance
Alternative forms
* allegiaunce (obsolete)
Noun
(
en noun)
Loyalty to some cause, nation or ruler.
Derived terms
* oath of allegiance
* pledge of allegiance
Synonyms
* fidelity, loyalty, adherence
royalism
English
Noun
Impassioned allegiance to or advocacy of the establishment, maintenance, and/or interests of a particular king, royal house, or kingly dynasty; sometimes extended to the same of a non-royal (i.e., grand ducal, imperial, or other) family or sovereign; often contrasted with monarchism.