In Taiwan, it also remains in formal usage in party politics.

As with other racial and ethnicity based terms, formal and common usage have changed markedly through the short history of this term.

A slightly less formal usage is "the Keeper."

These are distributed throughout the registers, from slang to formal usage.

A slightly less formal usage is simply the Amyrlin.

It had been that long since its formal usage.

As already mentioned, these local words range from slang to formal usage, and their use therefore varies depending on the context.

For example, in formal usage, troponin would not be listed as a cardiac enzyme.

Informal and formal, professional and personal usage is likely to be intermingled.

They are inappropriate in formal or scholarly usage.