0 a set of letters, numbers, or signs that are used instead of ordinary words to keep a message secret -- clave
It was written in code.
1 a set of numbers used at the beginning of a phone number for a particular area -- prefijo
2 to represent a message in code so that it can only be understood by the person who is meant to receive it -- cifrar, poner en clave
3 a system for communicating using secret combinations of symbols -- código [ masculine ]
a message written in code un mensaje escrito en código
4 a set of rules for behavior -- código [ masculine ]
a code of conduct un código de conducta
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Podemos completarlo paso a paso, por muy largo que sea el camino, y no se puede completar, por corto que sea el camino, si ni siquiera marcas tu huella.