which is correct parents- in-law or parent-in-law and why?

Answer 1

Parent-in-law is singular. If you mean both together,
the correct plural is parents-in-law.

(Same with passers-by.
The reason is that these are treated as words in a phrase, where "parent" is made plural, not "law.")

However, with possessive, you would say
my brother-in-law's house, not brother's-in-law house.

If you are only referring to one parent-in-law,
why not say mother-in-law or father-in-law, which is less awkward. You can also say my husband's mother
or my wife's father.

Answer 2

Parents In Law

Answer 3

This Site Might Help You.

RE:
which is correct parents- in-law or parent-in-law and why?

Answer 4

Parents - in -law is a correct answer assuming both are alive

Answer 5

The correct word is parents-in-law because of parent mean mother or father but parents mean both.

Answer 6

Parents -in law, cause parents means two people I guess

Answer 7

parent-in-law implies one parent. Parents-in-law is awkward. How about just, in-laws?

Answer 8

It's fathers in law or, mothers in law or, brothers in law or, sisters in law. You cannot have father in laws. People say in laws because it doesnt specify any set but, when you specfy mom, dad, sis, bro, the object becomes pluralized. 10-4?

Answer 9

they're both correct.
if theres one..then its parent in law
if theres two..then its parents in law

Answer 10

If there are two parents, if there is one parent. Same reason as you would use parents or parent referring to your own mother and father or one of them.