The breath test is a common term used to describe the process of testing a person's breath for alcohol or other substance levels. However, there are many synonyms for this term that can be equally effective in conveying the same message. Some of the synonyms for breath test include breathalyzer test, breath alcohol test, and breath analysis test. Other variations include breath screening, breath assessment, and breath examination. Regardless of which term is used, the purpose remains the same: to measure the amount of alcohol or other substances in a person's breath, thereby providing important information about whether they are fit to drive or perform other activities that require alertness and attention.