To nurse or cherish something.
To cultivate and grow something.
To nurture or bring up offspring, or to provide similar parental care to an unrelated child.
A foster parent.
The care given to another; guardianship.
Related by such care.
Receiving such care.
Providing parental care to children not related to oneself.
To manage to keep something.
Used other than figuratively or idiomatically: see hold, onto.