This is the 1051st most frequent Japanese word.
増加
Increase; growth; rise.
使用法: Here, '増加' is used as a noun referring to an increase in population.
人口の増加が都市部で顕著です。
The population increase is noticeable in urban areas.
使用法: In this sentence, '増加' is again a noun that specifies an increase in the number of tourists.
この町の経済は観光客の増加によって発展しました。
The economy of this town developed due to the increase in tourists.
使用法: Here, '増加' is used as part of a verb '増加する' meaning 'to increase', describing the annual growth of income.