In Somalia, 61% of the population reported that they do use khat, 18% report habitual use, and 21% are occasional users.

Even Shaun Ryder's habitual use of heroin has been well documented.

Why, one asks, his habitual use of four-letter words?

There are some evidence of a Semitic influence due to trade, but this pattern seemed to have evolved as the result of habitual use.

The habitual use of it whitens and beautifies the skin.

The authors acknowledge that the studies were short and that results may not apply to habitual use.

In all but the most exceptional cases, the injury from habitual moderate use is not appreciable.

He handled the antiques with the competence of experience and, she thought, habitual use.

He criticizes very severely the habitual use of metaphorical language in describing mental operations.

"Until it is that easy to do on your computer, it is not going to have habitual use."