Englishfor English speakers
a
Determinative
—
A is used when the following word could be any of a certain type.
Compare "A book I saw on the shelf" and "The book I gave you yesterday".
a
Noun
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A is the first letter of the alphabet.
The letter "a" comes before "b".
—
In some schools, an A is a very high grade.
Ron got an A on his earth science test.
substantial
Adjective
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If something is substantial, it is not small.
The children spent a substantial portion of the day in free play or unstructured time.
The company needs to make substantial reductions in spending.
After the accident, he lost a substantial amount of blood.
Changing the light bulbs might translate into very substantial energy savings.
Soft background music results in substantial improvement in reading comprehension.
We found no substantial evidence supporting these beliefs.
China has a substantial impact on the global economy.
That will help, but I'm not sure it will make a substantial difference.
They would likely benefit from a substantial decline in home prices.
Such a program will require substantial resources to develop and maintain.
remittance
—
noun
a payment of money sent to a person in another place