Beneficiaries are those who benefit. Here are some sentences.
My mom is my beneficiary.
A beneficiary is a person or group that receives benefits so a sentence you could use would be something like, "The beneficiary of the million dollar check was quite happy," or something to that extent.
The cows milk was beneficiary to the townspeople. use it as a descriptive word.
He is the sole beneficiary of his uncle Ben. If Ben dies then he gets everything!
The vacation was very beneficiary to my dad's health
I am not writing a sentence using that word.
When my father dies he will be the benefactor of his estate, and I will be the main beneficiary.
I can give you a sentence using the word galaxy.
a sentence using the word endotracheal
This is a sentence using the word aviator.
I am saying a sentence using the word collagen.
This is a sentence using the word monomer. :P
this is a sentence using the word armchair.