Water treader is a term that refers to a type of insect that can walk on water surfaces. However, other words can be used to describe this aquatic creature. One of these synonyms is the water strider, which is a more commonly used term compared to water treader. Another synonym is pond skater, which is used in the UK and other parts of Europe. Water skater is also another synonym for the water treader, while some people refer to it as the water spider due to the way it moves on water surfaces. Whatever the name used, water treaders are intriguing insects that are able to defy the laws of physics by effortlessly walking on water.