brand new

adjective

BRAND-noo/ˈbɹænd ˌn(j)uː/

2 meanings of brand new

1
totally freshadjective
Totally new, as new as something can be.
My brother got a brand new bike for his birthday.
The shoes still had tags on them because they were brand new.
Similarnew, unused, fresh, mint, pristine
Oppositeused, old, secondhand, worn
Note
2
acting differentadjectiveslang
Behaving in a way that is not like your usual self.
Why are you acting brand new? You used to sit with us at lunch.
He got one good grade and started acting brand new in class.
Similardifferent, funny, strange
Note

Practice

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Origin

It comes from brand, meaning a burning piece of wood, plus new. It describes something just made in a fire.