1. students in their final year of high school or college
2. older adults, especially those who are retired or of advanced age
3. people who are older or have higher rank than others in the same organization or field

Examples

• The seniors are planning their graduation ceremony.
• High school seniors must apply to colleges by December.
• The community center offers exercise classes for seniors.
• Many seniors receive discounts at restaurants and theaters.
• The company’s seniors made the final decision about the merger.
• New employees should respect the advice of their seniors.
• College seniors often feel anxious about finding jobs after graduation.