Grammar fix

a marked improvement

a very noticeable and clear improvement, often used to highlight a significant positive change in quality, ability, or situation.

collocationC1occasional

Hear it in context

Notice where the phrase sounds natural.

There has been a marked improvement in her English since she started taking private lessons.daily life
In my opinion, there has been a marked improvement in public transport over the past decade, making it much more convenient for commuters.IELTS speaking

Fix the pattern

Pattern: a marked improvement (in something)

WrongThere's a marked improvement on his grades.

RightThere's a marked improvement in his grades.

'An improvement IN something', not 'on'.

Patterna marked improvement (in something)

Use it right

Choose the version that sounds natural in speech.

Stiff The data indicate a markedly significant amelioration in performance.

Natural There's a marked improvement in performance.

'Amelioration' is rare and bookish; 'improvement' is the everyday word.

Build natural chunks

Words that usually travel with it.

a marked improvement in
inshowseesince

Don't confuse it

Unlike 'an improvement' (any positive change), 'a marked improvement' stresses that the change is clear and easy to notice. It is more formal and specific than 'a big improvement'.

Try it in Daily Speak →