Modernize vs. Modernise — What's the Difference?

To make modern in appearance, style, or character; update.

(British spelling) modernize

To accept or adopt modern ways, ideas, or style.

Become technologically advanced;

(transitive) To make (something old or outdated) up to date, or modern in style or function by adding or changing equipment, designs, etc.

Make repairs or adjustments to;

(intransitive) To become modern in appearance, or adopt modern ways

To render modern; to adapt to modern person or things; to cause to conform to recent or present usage or taste.

Make repairs or adjustments to;

Become technologically advanced;