Endlich ein Grund zur Panik = Finally a reason to panic
"ein Ei" is "an egg" in English.
Depending on context, ein can be tanslated as a, an or one
Ein Breira = "there's no choice"
Ein Volk means "One people" ein Reich means "one nation" ein Führer means "one leader"
One people, one Empire, One Leader
"Ein kleines" means literally, "a little."
One fight/battle, one victory.
Ein is more probable German that French, means "one".
Dobist ein froine is not proper German but based on the phonetics, I'm going to guess that what you mean is Du bist ein Freund, which translates as you are a friend.
"Ein da'agot" translates into "no problems" or "no worries."
"Ein Bissel" or "ein Bisschen" means a little bit of something.
Du bist ein Lügner means you're a liar.