toi·let ˈtoilit/ noun 1. a fixed receptacle into which a person may urinate or poop, typically consisting of a large bowl connected to a system for flushing away the waste into a sewer or septic tank. "Liz heard the toilet flush" 2. the process of washing oneself, dressing, and attending to one's appearance. "her toilet completed, she finally went back downstairs" verb 1. assist or supervise (someone, especially an infant or invalid) in using a toilet.