All 3 Uses

parliament
in
Sweet Far Thing
(Auto-generated)

Parliament will commence, and hordes of families will begin their assault on our fair city for parties and teas, concerts, derbies, and entertainments of all sorts.†
Chpt 4

parliament = legislative assembly that passes laws (existing in some countries)
The room buzzes with talk of the hunt and Parliament, horses and estates, but their eyes never stray too far from us.†
Chpt 4 *
It is like trying to take down Parliament with only a thimble of gunpowder.†
Chpt 4

Definitions:

(1) (parliament with a lowercase "p")
a legislative assembly in certain countries (that can pass laws)
(2) (meaning too rare to warrant focus)
As a proper noun, you need to look at the context to determine the parliament to which Parliament is referring. For example, it could be the British Parliament, the European Union Parliament, the French Parliament, etc.