a significant increase

Translations
значительное увеличение
There has been a significant increase in the number of tourists visiting the city.
Произошло значительное увеличение числа туристов, посещающих город.
Definitions
A notable or substantial rise in quantity, value, or degree, often indicating a marked change or improvement in a particular context.
Words
a

article or possessive pronoun
неопределённый артикль
significant

adjective
значительный
increase

noun
увеличение