Grammar fix
significant improvement
clear improvement
A noticeable and important positive change in something, making it much better than before.
collocationB2common
Hear it in context
Notice where the phrase sounds natural.
- There has been a significant improvement in her English since she started practicing every day.daily life
- In my opinion, the city has seen significant improvement in public transport, making it easier for people to commute.IELTS speaking
Fix the pattern
Pattern: significant improvement (in something)
WrongThere was a significant improve in sales.
RightThere was a significant improvement in sales.
Use the noun 'improvement', not the verb 'improve', after 'significant'.
Patternsignificant improvement (in something)
Use it right
Choose the version that sounds natural in speech.
'Significant improvement' is the natural collocation; 'amelioration' is bookish.
Build natural chunks
Words that usually travel with it.
significant improvement + inin performancein qualityover last yearin health
Don't confuse it
‘Slight improvement’ means only a small change, while ‘significant improvement’ means a big, important change.