Which is more correct?
My baby is “one year old” or
My baby is “one years old”?
I’ve heard both and prefer the former over the latter…
I honestly had never heard of anyone using “one years old” but I just Googled it and found examples.
It’s not right. I’m trying to think of some way it could be right. The only possibility I’ve come up with is that all the other times - two years old, five years old, twenty-one years old etc. - are plurals and so would require you to add the “s”. Maybe people think they need to here as well. I’ve heard this called false precision.
Don’t do it.
This sounds like one bad ideas.
And one things I know is that “one” are a singular words.
And now I are laughing at my one funny jokes of the night. Or are that “nights”?
Perhaps it is confusion with phrases such as “in one year’s time”, not realising that “year’s” is possessive rather than plural in that case.
I’ve never heard this either.
I’ve heard something like it the other way around, with ages more than a year, i.e:
“my baby is two years old”
or
“My baby is a two-year-old”
I’m pretty sure that’s because it evolved from the adjective form (e.g. a two-year-old cookie), and adjectives do not tend to take an S in the plural.