Spanish

Hey guys!
Did you know that the Spanish word for sustain is sostener or aguantar? I was on http://www.dictionary.com/ and I clicked on translate. I looked up sustainability but it couldn't find it so I put in sustain and it said that the Spanish for it is sostener. I found that really interesting and I thought it would relate to our sustainability study and we are also learning Spanish at the moment so I thought it would fit in with out studies