Add oxygen to (6)
I believe the answer is:
aerate
(Other definitions for aerate that I've seen before include "Fill with oxygen" , "Fill with bubbly gas" , "Introduce air into" , "Supply with oxygen" , "Fill with carbon dioxide" .)
I believe the answer is:
aerate
(Other definitions for aerate that I've seen before include "Fill with oxygen" , "Fill with bubbly gas" , "Introduce air into" , "Supply with oxygen" , "Fill with carbon dioxide" .)