Regimen/ˈredʒɪmən/ Definition 1 of 2Pro Tip 1/3Health Focus The word 'regimen' often suggests a systematic plan with health or fitness goals in mind. Her regimen includes both diet and daily yoga practice. Pro Tip 2/3Discipline Required A 'regimen' implies discipline and adherence to the specific plan laid out. Following a strict sleeping regimen ensures he's fully rested. Pro Tip 3/3Detail Oriented A 'regimen' typically involves detailed instructions or steps to follow. Her fitness regimen specifies the exercises for each day of the week.