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favour; favor; patronage; favouritism; favoritism; partiality
favourite; favorite
patron; supporter; backer
「贔屓」 has other readings with different meanings.
彼女はいつも弟をひいきしている。
She always favors her younger brother.
あの店は昔からのひいきで、毎週通っている。
That shop has been my favorite for years, and I go every week.
審判が相手チームをひいきしたと感じた。
I felt the referee favored the opposing team.