2)The letter directly to the left of "v" - or directly to the right of "x" - on a computer keyboard.
3)One of many large bodies of water on the earth. Claims have been made that there are only seven, but those claimes refer to oceans rather than c's.
4)The act of viewing something with the human eye.
5)The third letter in the English alphabet.
6)In music, the key in which there are no sharps or flats in the key signature.
2)xcv (?=key on the keyboard)
3)A sailer sailed on the more than seven c's.
4)I c you.
6)Play that in the key of C.
If a message that ends in a C instead of an X is not followed up immediately whit a message that says simply 'X', it suggests that the the original mistake was not noticed by the other party when they did their ISTRB (Immediate Sent Text Read Back).
C is also for Cookie, that's good enough for me.
Woman: Hey hun;-) For Sure! I can't Wait xx
Man: Sorry about the C Babe! I missed that on my first ISTRB XX