Thumbname

• 1

  informalThe eastern part of the Lower Peninsula of Michigan, United States (the "Mitten").

  • Turnip Rock is located in a portion of eastern Michigan dubbed the Thumb, where 140 miles of coastline and waterfront towns offer a variety of outdoor activities, including biking, walking and kayaking.

thumbnoun/ˈθʌm/

• 1

  The shortest and thickest digit of the hand that for humans has the most mobility and can be made to oppose (moved to touch) all of the other fingers.

• 2

  computingengineeringgraphical-user-interfaceThe part of a slider that may be moved linearly along the slider.

  • a scroll-bar thumb
• 3

  A thumbnail picture.

• 4

  A top hatch plate for covering an excavator bucket, used to keep material in the digger bucket after scooping it up, and not letting it spill out.

thumbverb/ˈθʌm/

• 1

  To touch or cover with the thumb.

  • to thumb the touch-hole of a cannon
  • News agencies reported Lavrov had been sent to hospital for a checkup, only for the Russian foreign ministry to rush out a picture of Lavrov in shorts, sporting an Apple watch and Jean-Michel Basquiat-inspired T-shirt, thumbing his notes for his first address at the summit on Tuesday.
• 2

  To turn the pages of (a book) in order to read it cursorily.

  • thumb through
  • I thumbed through the book and decided not to bother reading it all.
• 3

  To gesture with the thumb, for example when flagging a ride.

  • Oh, look! There’s a car coming! Thumb-no, wave. They probably don’t understand thumbing.
• 4

  lifestyletourismtransportTo hitchhike.

  • So I started thumbin' back east, toward my hometown.
  • Bobby thumbed a diesel down, just before it rained.
• 5

  To soil or wear with the thumb or the fingers; to soil, or wear out, by frequent handling.

  • He gravely informed the enemy that all his cards had been thumbed to pieces, and begged them to let him have a few more packs.
• 6

  To manipulate (an object) with the thumb; especially, to pull back the hammer or open the cylinder of a revolver.

  • Fargo palmed out his own revolver, thumbing back the hammer as the barrel came up.
  • Rainford reached down and found the revolver. Thumbing the cylinder open, he inspected the load.
• 7

  To fire (a single action revolver) quickly by pulling the hammer while keeping the trigger depressed.

  • To thumb a single-action revolver, hold down the trigger and use the thumb on the same hand to fire the gun by manipulating the hammer.