English for Today by Ganiu Abisoye Bamgbose (Dr GAB).
That area is ~out of bound~ to students (nonstandard).
That place is *out of bounds* to students (standard).
If a place is out of bounds, people are not allowed to go there.
We shall overcome Nigeria’s ~growing pain~ (nonstandard).
We shall overcome Nigeria’s *growing pains* (standard).
If a person or organisation has growing pains, they experience temporary difficulties and problems at the beginning of a particular stage of development.
He has increased ~in leap and bound~ lately (nonstandard).
He has increased *in leaps and bounds* lately (standard).
You can use in leaps and bounds or by leaps and bounds to emphasize that someone or something is improving or increasing quickly and greatly.
The meeting was held ~behind closed door~ (nonstandard).
The meeting was held *behind closed doors* (standard).
If people have talks and discussions behind closed doors, they have them in private because they want them to be kept secret.
GAB
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