Nantucket's airport code is ACK, which stands for Nantucket Memorial Airport. The "ACK" code is derived from the island's name, as it is a common practice to use letters from the name of the location to create the airport code. Nantucket is a popular travel destination, especially during the summer months.
"bar code" contains 7 letters.
The letters on the side of a Spitfire were it's Squadron code ( 2 letters) and it's individual aircraft code.
In cryptography, the code names for the letters in the keyword are known as cipher alphabets.
By code if you mean secret code for secret letters, then no.
... Press capslock?
The 2 Or 3 Letter Code Is Issued As An Airline Identifier By The ITIA
act
There are 14 numbers and letters in a beyblade promo code and i know this because i have many promo codes and they all have 14 numbers and letters.
they are letters to crack an ancient code (The Shape Of Them)
a postal code in America is a code people use to mail letters.
C.a
The DNA letters TAA would code for the amino acid glutamine.