A

noun
1
the first letter of the English alphabet
الف, اولین حرف الفبا, حرف الف, حرف اول
2
the 6th note in the scale of C major
لا, لا (نت موسیقی), نت لا, ششمین نت در دو ماژور
3
a grade that a student can get for a piece of work or course of study that shows that it is excellent
نمره الف, نمره عالی, نمره ممتاز, رتبه الف
She got (an) A in biology.
He had straight A's all through high school.
4
used to represent the first of two or more possibilities
الف, گزینه اول, نخستین گزینه, انتخاب اول
Shall we go for plan A or plan B?
5
used to represent a person, for example in an imagined situation or to hide their identity
شخص, فرد, کس, فرد ناشناس, یک نفر
Assume A knows B is guilty.
symbol
1
used in the UK before a number to refer to a particular important road
بزرگراه, شاهراه
2
used (but not in the US) before numbers that show standard metric sizes of paper
اِی (انواع کاغذ استاندارد)
a sheet of A4 paper
A3
A5
abbreviation
1
(in writing) amp
آ, واحد تقویتی