terraformter·ra·form /ˈterəfɔːm $ -fɔːrm/ verb [transitive] 
to change the conditions on a planet so that people can live on it: 
Would it be possible to terraform Mars?
to change the conditions on a planet so that people can live on it: Would it be possible to terraform Mars?- William III
- William II, King
- William of Orange, King
- William, Prince
- Williams, Hank
- Williams, John
- Williams, Ralph Vaughan
- Williams, Rowan
- Williams Sisters
- Williams, Ted
- Williams, Tennessee
- Williams, William Carlos
- William the Conqueror
- willie
- willing
- willingly
- willingness
- Willis, Bruce
- will o' the wisp
- willow
- willowy
- willpower
- willy
- willy-nilly
- Wilson, Harold