0 the mixture of gases around the earth that we breathe -- aire
1 used especially before another noun about activities that involve planes -- aéreo
air travel
2 the space above and around things -- el aire
3 to say your opinions -- expresar tus opiniones, puntos de vista, etc.
4 the gases we breathe -- aire [ masculine ]
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.