What is the difference between showers, rain and drizzle?

[bluemingidiot]

shower

Precipitation from a convective cloud. Showers are characterized by the suddenness with which they start and stop, by the rapid changes of intensity, and usually by rapid changes in the appearance of the sky.

Showers, also known as rain showers, have a shorter duration than rain. They tend to be quick and come in bursts. Showers come from puffy clouds or cumuliform clouds, like cumulus or cumulonimbus. ... Compared to rain, showers cover a smaller area but can be more intense.

rain

Precipitation in the form of liquid water drops that have diameters greater than 0.5 mm, or, if widely scattered, the drops may be smaller. The only other form of liquid precipitation, drizzle, is to be distinguished from rain in that drizzle drops are generally less than 0.5 mm in diameter, are very much more numerous, and reduce visibility much more than does light rain.

glossary.ametsoc.org/wiki/Rain

For the last four days the National Weather Service would be predicting that we would be having showers. All we had was drizzle.

drizzle

Drizzle is normally produced by low stratiform clouds and stratocumulus clouds. Stratus clouds are low-level clouds characterized by horizontal layering with a uniform base, as opposed to convective or cumuliform clouds that are formed by rising thermals.

en.wikipedia.org/wiki/Stratus_cloud

Additionally, any drop which has a diameter of 0.5 mm or less, is generally considered to be drizzle while larger than that is considered to be rain.

Most likely you weather provider does not understand the difference.  Most call all unfrozen forms of precipitation 'rain.'
So when they predict rain, don't count on it.

[Deleted]

Drizzle barely gets the ground wet.
Showers start and stop, lighter than a hard rain, April showers bring May flowers.
Rain, sets in and lasts longer, we get rain in Oregon. Rain brings floods....James

[Deleted]

Then here we get mist.
You feel it but it is so fine rain that it was very weird to me never seen it but when heading to Niagara falls

[bluemingidiot]

Fog is a cloud that reaches ground level, even if that "ground" is a hill or mountaintop. Mist forms wherever water droplets are suspended in the air by temperature inversion, volcanic activity, or changes in humidity. Fog is denser than mist and tends to last longer.

[grannyg]

LOL...it is all wet.....

[bluemingidiot]

But not wet enough.

The slippery eels trick people into watching weather for a week predicting 'rain' when the correct analysis would show it is only drizzle. But they know much of the public is too ignorant to know they are being had to raise viewership and increased commercials number and/or price.

[Use Less]

Hereabouts, we take more notice of the various ice and snow terms: ice, freezing rain, ice pellets, sleet, grapple, flurries, snow showers, snow, mixed precipitation. That last makes me chuckle a bit. It is the meteorologists' way of saying, "What you see is what you get." They've also started using "wind event" and "snow event." Those seem designed to raise concern, often unnecessarily.