fiddlesticks
"Xcuse me" and "Xcellent" are interjections that start with the letter X.
'But' is an interjection that begins with the letter 'b'.
Interpolation
Some interjections that start with the letter J include "jeez," "jolly," and "just."
Quiet!
"Wow" is an interjection that starts with the letter L.
Kapish is an interjection. It is slang for "Do you understand?"
Yes, almost anything can be an interjection,for instance "DOOM!" could even be one.
There are no countries in Africa that start with the letter F.
What engineers start with the letter F?
ford's focus
"Ah!" "Awwwww!" "A-ha!" etc....