Domino (dominoes or dominoes) is a term used to describe a chain reaction or a sequence of events that results from the effect of one event on another. It is most often referred to as a mechanical phenomenon, in which a single action or decision can set off a cascade of similar actions or decisions, much like the way a single domino can knock over several other dominoes. The term is also used to describe a specific type of game, which involves placing and then arranging dominoes in lines or angular patterns.

A domino is a rectangular, thumb-sized block with two opposite ends bearing from one to six dots or pips. It is usually twice as long as it is wide, and the number of pips on each end indicates its value. A domino that has no pips is called a blank, while a tile with seven or more pips is known as a double. Most domino sets consist of 28 tiles, although larger dominoes can be found in extensions to the basic set.

When a player places a domino, they must ensure that the matching ends of each domino touch. This creates a domino chain that develops snake-like patterns. When one of these chains is played to a double, the two matching sides must be perpendicular. Dominos may also be stacked on top of each other in rows, creating even more complicated designs.

Dominoes have been around for centuries and are a popular pastime in many cultures, including China and Europe. They are a great way to test patience and skill, as well as a fun way to spend time with friends and family. There are many different games that can be played with dominoes, including blocking and scoring games, and there are also a few games that require strategy.

In the business world, domino is sometimes used as a metaphor to refer to a situation in which a small change can have a large impact on the outcome. For example, if a company is underperforming, changing just one element of the business can have a ripple effect, causing other aspects to change in unintended ways. This is a popular analogy when discussing the need to be careful about how changes in one area can affect other areas of the business.

The domino effect is also used as a metaphor in writing, especially for pantsers (those who do not make detailed outlines of their plot ahead of time). If a panster writes a scene that doesn’t connect to the scenes around it or have enough tension, the result will likely be similar to a falling row of dominoes.

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