Englishfor English speakers
constraint
Noun
—
A constraint is a limit.
Perhaps the main constraint is lack of money.
Financial constraints have forced hospitals to treat more patients more rapidly.
In the Middle East, there are often tight constraints on women's activities.
zone
Noun
—
A zone is an area that is known for a particular use.
You are in a no-smoking zone.
Touchdowns are made in the end zone.
—
When you are in the zone, you are in a time of high performance.
zone
Verb
—
If you zone something, you divide into it; you give it a particular use.
—
If you zone a property, you determine what the property will be used for.