Grammar fix
a hallmark
distinctive quality
A quality that is typical of a particular person, style, period, or thing.
collocation
How oftenCommon
LevelC1
Used inSpeech & writing
Hear it in context
Notice where the phrase sounds natural.
Careful planning is a hallmark of successful public transport systems.
My grandmother's cooking has one real hallmark: she puts fresh herbs in absolutely everything, even the soups.
Fix the pattern
One small grammar move makes it sound right.
Not: Attention to detail is a hallmark for the company.
Say: Attention to detail is a hallmark of the company.
The usual preposition is 'of' after 'a hallmark'.
Don't confuse it
Other ways to say it
A quality that makes something easy to recognise
How formal?ConversationalMore formal
a trademarkA characteristic people strongly associate with someone or something.a defining featureA characteristic central to what makes something distinctive.
a hallmarkYou're here · A distinctive quality typical of a style, person, or thing.