Ecotax can be defined as a tax levied on activities that impact the environment. The word has gained popularity in recent times due to the growing concern about sustainability and climate change. However, there are several other synonyms for this term that refer to the same concept. One of the most commonly used synonyms is environmental tax. Other options include green tax, pollution tax, carbon tax, and eco-levy. These terms all refer to a tax or fee imposed on activities that harm the environment or contribute to climate change. Despite the different names, they all share the same goal of promoting sustainable practices and reducing negative environmental impacts.