to reduce the amount of money you spend on something
reducir la cantidad de dinero que gastas en algo (reducir la cantidad de dinero que gastas en algo)
"You can save on electricity by turning off lights."
"Puedes ahorrar en electricidad apagando las luces." (puedes **ahorrar en** electricidad apagando las luces)
to stay brave and optimistic in difficult situations
to agree to join or support something officially
to do things more calmly or at a relaxed pace
to act according to what one has promised or expected
to divide into smaller parts; to disintegrate
to visit someone at their place