Englishfor English speakers
a
Determinative
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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".
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In some schools, an A is a very high grade.
Ron got an A on his earth science test.
ignore
Verb
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If you ignore someone or something, you don't listen to, look at, or pay attention to them.
He says he should be paid for fixing it, but he's ignoring the fact that it wasn't broken.
b
Noun
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B is the second letter of the alphabet.
"b" comes after "a" but before "c"
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In some schools, a B is a fairly high grade.
Charles got a B in his maths test.
gate
Noun
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A gate is like a door in a fence. It opens to let people go through the fence.
Please open the gate for me; my hands are full.
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In computers and logic, a gate is something that gives a simple yes-or-no answer from two (or one, or more than two) yes-or-no things coming into it.
We need one more "and"-gate here so that it will give the finished answer.