(uncountable) Modern or contemporary ideas, thought, practices, etc. / (countable) Anything that is characteristic of modernity.

The quality of being modern or contemporary. / Modern times. / (history) Quality of being of the modern period of contemporary historiography.

An advocate of modernization.

(transitive) To make (something old or outdated) up to date, or modern in style or function by adding or changing equipment, designs, etc.

plural of modernity

plural of modernness

plural of modernizer

Of or relating to the Streamline Moderne school of architecture.

plural of modernism

Somebody who lives in the modern age.