(blok) noun
1. A solid piece of wood, metal, or other material.
2. A wooden log or the like upon which chopping is done.
3. A temporary support; shore.
4. The stand on which slaves were sold at auction.
5. A wooden billet on which condemned persons are be headed.
6. The form or piece on which the final shape is given to a hat body, or one on which a hat is placed to be ironed.
7. A wooden support for a wig: a barbers' block.
8. A continuous portion of land: a 10-acre block.
9. A sheave or pulley, or set of pulleys, in a frame or shell.
10. The land and buildings enclosed in a single square, or the like, bounded by streets; the distance along a street from one cross-street to another.
11. A group acting or considered as a unit: a block of theater seats; the Asian block of nations.
12. Austral. The public promenade of a city; also, one of the sections into which the public lands available for settlement are divided.
13. A section of a railroad controlled by signals.
14. A set, as of tickets, shares of stock, etc., handled as a unit.
—v.t.
1. To shape into blocks.
2. To shape, mold, or stamp with a block, as a hat.
3. To secure or strengthen with blocks.
—to block out To plan broadly without details.
—to block up To raise on blocks. [<F bloc. ult. <Gmc.]
TYPES OF BLOCKS
a. Tackle.
b. Dock.
c. Link snatch.
d. Triple-sheave steel.
e. Gin.
f Square-cheeked.

(blok) noun
1. That which hinders or obstructs, or the condition of being obstructed; an obstruction.
2. In sports, interference.
3. The blocking of a ball with a bat, as in cricket.
4. Pathol. An obstruction, as of a nerve or blood vessel.
—v.t.
1. To obstruct; stop or impede the progress of.
2. To stop with or as with a block; blockade: often with up.
3. In sports, to hinder the movements of (an opposing player), usually by bodily contact; also, to stop (a ball), as with the body.
4. Physiol. To stop (a nerve) from functioning, as with an anesthetic.
—v.i.
5. To act so as to hinder. See synonyms under HINDER.
—to block out To obscure from view.
—to block up To fill (an area or space) so as to prevent movement into or through. [<F bloquer obstruct <bloc block, ult. <Gmc.]