Meaning of A in English

A

indefinite article

1

BAD : I hope you all have a enjoyable stay.

GOOD : I hope you all have an enjoyable stay.

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Always use an (NOT a ) before a word beginning with a vowel sound: 'an egg' , 'an envelope'.

2

BAD : The child had been a deaf since birth.

GOOD : The child had been deaf since birth.

BAD : One of the girls I share with is a British.

GOOD : One of the girls I share with is British.

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Do not use a/an before an adjective (e.g. 'deaf', 'British') unless the adjective is followed by a noun: 'Her husband is disabled.'

Compare: 'The footbridge cannot be used by the disabled.' (= all people who are disabled)

3

BAD : My husband is doing a MSc in civil engineering.

GOOD : My husband is doing an MSc in civil engineering.

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Use an (NOT a ) before an abbreviation that begins with a vowel sound: 'an MSc' 'an MP'.

4

See ANOTHER 6 (↑ another )

5

BAD : Sometimes it is difficult to live a honest life.

GOOD : Sometimes it is difficult to live an honest life.

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Use an (NOT a ) before words beginning with h when the h is not pronounced: 'an honour', 'an hour'.

Longman Common Errors English vocabulary.      Английский словарь распространенных ошибок Longman.