linchpin /linchˈ or linshˈpin/

1. A pin used to keep a wheel on its axle
2. A person or thing essential to a plan, organization, etc (figurative)

• news magazine
• newsmagazine
• news magazines
• newsmagazines
• newsman
• newsmen
• newsmonger
• newsmongers
• newspaper
• newspaperdom
• newspaperdoms
• newspaperism
• newspaperisms
• newspaperman
• newspapermen
• newspapers
• newspaperwoman
• newspaperwomen
• Newspeak
• Newspeaks
• newsprint
• newsprints
• newsreader
• newsreaders
• newsreel