It's not a word in common usage.

这不是一个常用词。

《牛津词典》

There are several different detectors in common usage.

有几种不同的检测器可供平常使用。

youdao

In common usage, I think that they are more used interchangeably.

而我认为一般的用法是可以互换的。

youdao

While some limit on magazines may be constitutionally permissible, one that falls below the capabilities of guns in common usage for self-defense is probably not.

WSJ: David Rivkin and Andrew Grossman: Gun Control and the Constitution

While some may argue that RSS feeds (for Real Simple Syndication) have fallen from common usage in the social media era, how would Google explain the huge, instantaneous response on Twitter from Google Reader users?

FORBES: Google's Strange Attack On Bloggers And The Public Internet: The Massive Reaction To Reader Shutdown

Today its most common usage is in the workplace where it refers to such things as flexi-time, variable hours and extended periods of leave.

ECONOMIST: Idea: Flexibility | The