This seems to be a case of rapid usage change, with "reared" turning into a purely formal term while "raised" is the term automatically preferred by most speakers and writers.
How do you use reared in a sentence?
Reared sentence example
- Swine are reared in large numbers. ...
- She must sacrifice herself for the family that had reared and brought her up. ...
- A pang of morality reared its ugly head.
What does it mean when something is reared?
1 : to erect by building : construct. 2 : to raise upright. 3a(1) : to breed and raise (an animal) for use or market. (2) : to bring to maturity or self-sufficiency usually through nurturing care reared five children birds rearing their young. b : to cause (plants) to grow.