trousers Or if you mean what do they call the things you wear under your trousers etc then they call them under pants
Pantaloons
Flyer. Fly (US)
What Americans call pants, the British would call trousers.
A hook. The lip.
CPO
It's called an off hook tone. Or you can call it a receiver off hook tone or r.o.h. tone or a permanent signal.
1 Hook and pile fasteners tape at the fly 2 Reinforced knees 3 Adjustable suspenders
The hook
During the Victorian era, trousers were commonly referred to as "trousers" in a formal sense, but they were often called "pants" or "pantaloons." The term "pants" was used more frequently in America, while "pantaloons" described a type of loose-fitting trousers that were fashionable at the time. Additionally, "culottes" referred to a style of divided skirts that women wore, which were also part of the broader category of trousers.
The plural of "his trousers" is "their trousers."
No