Englishfor English speakers
f
Noun
—
F is the sixth letter of the alphabet.
"e" comes before "f"
—
In some schools, an F is a grade that shows that you have failed completely.
This student has not made any attempt in the exam; he only got an F.
n
Noun
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The fourteenth (14th) letter of the alphabet.
"n" comes after "m" and before "o"