名詞 beneficiary:

1. the recipient of funds or other benefits
   同義詞：donee
2. the semantic role of the intended recipient who benefits from the happening denoted by the verb in the clause
   同義詞：benefactive role

形容詞 beneficiary:

1. having or arising from a benefice

ben.e.fi.ci.ar.y

n.（名詞）
【復(fù)數(shù)】 ben.e.fi.ci.ar.ies
One that receives a benefit:
受益者：接受好處的人：
例句：
I am the beneficiary of your generosity.
我是你慷慨大方的受益人

The recipient of funds, property, or other benefits, as from an insurance policy or will.
受益人：基金、財產(chǎn)或其他好處的接受人，如按照保險單或遺囑而得的
Ecclesiastical The holder of a benefice.
【基督教會】 受俸牧師

來源：
Medieval Latin benefici3rius [holder of a feudal benefice]
中世紀(jì)拉丁語 benefici3rius [封地（或采邑）的受益人]
from Latin [soldier granted privileges]
源自 拉丁語 [享受特權(quán)的士兵]
from beneficium [benefit] * see benefice
源自 beneficium [好處，利益] *參見 benefice

【引伸】
ben.efi.ciar.y
adj.（形容詞）