Is proliferate formal or informal?

It is fairly formal. You often see it in news, science, and academic writing.

Can I use proliferate for people?

Yes, but it is less common. It usually describes groups, populations, or activities, not one person.

What is the difference between proliferate and increase?

Increase is general and neutral. Proliferate suggests fast, wide, and often uncontrolled growth.

← Dictionary

proliferate

/prəˈlɪf.ə.reɪt/

IELTSAcademic

verb

To increase quickly in number. It is often used for plants, cells, ideas, or problems.

Wildflowers proliferate after heavy rain.
Fake news can proliferate online quickly.
The bacteria proliferated in the warm room.

Adinary Nuance

Proliferate means grow or spread very fast, often in a way you notice as a problem or change. It is stronger and more formal than increase or grow. Writers often choose it for cells, rumors, websites, and pests, not for ordinary daily growth.

In other languages

Vietnamese: phát triển nhanh
Spanish: proliferar
Chinese: 迅速增多
Japanese: 急増する
Korean: 급증하다

Etymology

Proliferate comes from Latin proliferare, meaning “to produce offspring” or “to spread.” It entered English in the 17th century and later became common in science and general writing.

Common phrases

proliferate rapidlyproliferate onlineproliferate across the region

Synonyms

multiply increase spread mushroom

Related words

growth expansion spread abundance

Frequently asked questions

Is proliferate formal or informal?: It is fairly formal. You often see it in news, science, and academic writing.
Can I use proliferate for people?: Yes, but it is less common. It usually describes groups, populations, or activities, not one person.
What is the difference between proliferate and increase?: Increase is general and neutral. Proliferate suggests fast, wide, and often uncontrolled growth.