1fos·ter 
/ˈfɑ:stɚ/ verb
fos·ters; fos·tered; fos·ter·ing /ˈfɑ:stɚ/ verb 1 [+ obj] : to help (something) grow or develop
▪ We are trying to foster [=encourage, promote] a sense of community. ▪ Such conditions foster the spread of the disease. 2 : to provide the care that a parent usually gives to a child : to be or become the foster parent of a child [+ obj] ▪ Would you consider fostering a child? [no obj] ▪ (chiefly Brit) Would you consider fostering?
▪ We are trying to foster [=encourage, promote] a sense of community. ▪ Such conditions foster the spread of the disease.
