She knows a lot about history.

He is a knowledgeful person.

The knowledgeables gathered at the conference to share their expertise.

I would like to express my knowledgements to all those who have supported me throughout this journey.

She has a vast knowledgement in various fields.

He is a knowledgable person.

She is knowledging the importance of education.

He possessed a vast amount of knowledg.

Her knowledgability on the subject impressed everyone.

Her knowledgableness on the subject impressed everyone.