She cheerleaded for her school's football team.

She cheerleads for the school's football team.

The Cheerios effect is a phenomenon in fluid dynamics where small floating objects tend to attract one another.

I had a bowl of Cheerios for breakfast.

The Cheerio effect is a phenomenon in which small particles floating on the surface of a liquid come together to form clusters.

She is always a great cheerer-upper when I'm feeling down.

She smiled cheeringly at her friend.

She wore a cheerleaderish outfit to the game.

She has a cheerleaderlike enthusiasm for the game.

She is the cheerfullest person I know.