block

1 block /ˈblɑːk/ noun
plural blocks
1 block
/ˈblɑːk/
noun
plural blocks
Britannica Dictionary definition of BLOCK
1 
[count] : a solid piece of material (such as rock or wood) that has flat sides and is usually square or rectangular in shape
— see also building block, chopping block, starting block
2 
[count]
a  : an area of land surrounded by four streets in a city
b  US : the length of one city block
3 
[count] : a large building divided into separate units (such as apartments or shops)
◊ This sense of block is more common in British English than in U.S. English.
— see also block of flats, cellblock, tower block
4 
[singular] : something that stops the progress or achievement of something
5 
[count] sports : an action or movement that stops or slows down an opponent
6 
[singular] : something that stops a person from thinking about certain things — see also stumbling block, writer's block
7 
[count]
a  : a number of similar things that form a group
b  : an amount or section of something

chip off the old block

— see 1chip

knock someone's block off

— see 1knock

new kid on the block

— see 1kid

on the block

or on the auction block
: for sale at an auction
broadly : for sale
2 block /ˈblɑːk/ verb
blocks; blocked; blocking
2 block
/ˈblɑːk/
verb
blocks; blocked; blocking
Britannica Dictionary definition of BLOCK
1 
[+ object]
a  : to be placed in front of (something, such as a road or path) so that people or things cannot pass through
— sometimes + up
b  : to place something in front of (something, such as a road) so that people or things cannot go into the area
— often + off
2 
[+ object]
a  : to stop (someone or something) from moving through or going by
b  : to stop (something) from getting through to someone or something
c  : to be in front of (something) so that it cannot be seen
3 
[+ object]
a  : to not allow (something, such as progress or an action) to occur
b  : to be in the way of (something)
4 
sports : to stop the movement of (an opponent, a shot, etc.)
[+ object]
[no object]

block in

[phrasal verb]
block in (someone or something) or block (someone or something) in
: to put something in front of (someone or something) so that person or thing cannot leave

block out

[phrasal verb]
1 
block out (something) or block (something) out
: to hide or cover something so that it cannot be seen, felt, or heard
2 
: to force yourself not to think about (something) : to ignore (something)

— blocker

noun, plural blockers [count]