American Dictionary

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Definition foster in American English

foster verb

verb
/ˈfɑstər/
1

to help something to develop over a period of time

Example

This approach will foster an understanding of environmental issues.

Example

Overuse of antibiotics may foster the spread of drug-resistant bacteria.

Synonyms and related words
2

to take care of a child as part of your family for a period of time because the child's parents cannot take care of them

Synonyms and related words
Definition foster in American English