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.
self
Noun
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Your self is the type of person you are, particularly the way you usually act, look or feel.
He looked so happy compared to his usual down self that Walter wondered if something was wrong.
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Someone's self is their personality or character that makes them individual.
As the baby grows older, it begins to develop a sense of self.
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Self is used to refer to a person.
Please bring your wife and your good self.
conscious
Adjective
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If you are conscious of something, you notice or realize it.
Soon after I walked into the room, I became conscious of many eyes looking at me.
I was conscious of being rude, but I couldn't stop myself.
I'll make a conscious effort to be on time.
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If a person or animal is conscious, it knows what's happening around it.
He fell and hit his head, but he is still conscious.
She was conscious during the operation.
laugh
Verb
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Someone laughs when they make a sound with their mouth because they think something is funny. It can sound like "ha ha", "ho ho", "hee hee", etc.
That was a really good joke. I've never laughed so hard!
laugh
Noun
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The sound of someone laughing, or the action of laughing.
We had lots of good laughs at the party.
I heard a laugh in the other room and went to see what they were laughing at.