Indefinite article A and AN are used to show one.
(a) a boy came to meet you.
(b) one boy came to meet you.
Both mean unknown.
Can we use a/an + one to show particular situations. I have seen some
context in which it is shown.
(1) A one eyed boy was carried to hospital for treatment.
(2) I have a one five ruppe note (currency) which is torn.
(3) His all round act spur india to a two wicket win over south africa.
Third sentence I got from news paper. "a two wicket" seems difficult
to understand. Generally, Wicket is singular and more than one wicket
is written wickets.
A is used singular countable. here, two shows plural and instead of wickets; mentioned wicket.
Could you inform the rule of a/an + one and of 3rd sentence ?