In practice, of course, we tend to limit ourselves to the familiar letters and digits.
And the companies tend to limit the amount of risk they have to any one issuer.
Wilderness challenge programs are expensive and tend to limit contact with parents.
After all, the changes tend to limit the personal perks and political advantages of their positions.
During the quiet period, companies tend to carefully limit news media access to their executives.
User groups in other major cities were normally run by the few people who had started the group, which tended to limit their growth.
Because we would have no way to measure such a thing, science tends to limit itself to the first two options.
They did, however, tend to limit what the colonists could get away with at the Indians' expense.
Two other physical factors tend to limit the city's population.
Many protected areas are still under private ownership, which tends to limit access as well.