[ + to infinitive ] His ambition is ultimately to run his own business.

He has already achieved his main ambition in life - to become wealthy.

political ambitions

She doubts whether she'll ever be able to fulfil her ambition.

I've always had a burning (= very great) ambition to be a film director.

After his heart attack, he abandoned his ambition to become prime minister.

She has a lot of ambition.

[ C ] His presidential ambitions were frustrated in the 1980s.

[ U ] No one ever accused him of lacking ambition.

ambition to do sth After his heart attack, he abandoned his ambition to become CEO.

achieve/fulfil/realize your ambition He has already achieved his main ambition in life - to become rich.

ultimate/long-term ambition Her ultimate ambition is to run her own business.

career ambitions.

political/personal/artistic ambitions

She's got a lot of ambition.

I felt he lacked the ambition to succeed in showbusiness.