Sentence:  Sam Rayburn is one of the greatest American public figures in the history of our country and I consider that I have been signally honored in the privilege of <WSD>knowing</WSD> Sam Rayburn and sharing with him the rights and obligations of a Member of the House of Representatives in the Congress of the United States . 
Meaning of the word marked with <WSD> tags:  be familiar or acquainted with a person or an object