Indefinite Article: ‘A’ is used before a noun that begins with a consonant sound (e.g., a cat, a pen, etc.).
‘An’ is generally used before a noun that begins with a vowel sound
(e.g., an apple, an egg, etc.).
Exceptions (ব্যতিক্রম)
1. ‘A’ is used before the vowel ‘U’ when it is pronounced and sounded
as ‘You’ (e.g., a uniform, a unit, etc.).
‘An’ is used before a consonant if the first ‘h’ of a word is silent (e.g., an honest man, an hour, etc.).
‘An’ is used before some words that begin with consonants but have a vowel sound (e.g. He/she is an M.A.).
Definite Article
1. ‘The’ is used before specific singular or plural nouns (e.g., I saw
a boy in front of the gate. The boy was crying).
2. ‘The’ is used before a noun that is unique and does not have any
alternative to it (e.g., the sun, the earth, etc.).
ইকবাল খান, প্রভাষক, বীরশ্রেষ্ঠ মুন্সী আব্দুর রউফ পাবলিক কলেজ, ঢাকা