- senior
- sen•ior[[t]ˈsin yər[/t]] adj.1) older or elder (typically identifying a father whose son is named after him; often abbreviated):John Doe, Sr[/ex]2) of earlier election, appointment, or admission:the senior senator from New York[/ex]3) of higher or the highest rank or standing4) of or pertaining to seniors in high school or college5) cvb of, for, or pertaining to senior citizens6) bus having a claim on assets, dividends, or the like prior to other stockholders, creditors, etc7) a person who is older than another8) a person of higher rank or standing than another, esp. by virtue of longer service9) a student in the final year at a high school, college, or university10) a senior fellow at a college of an English university11) a senior citizen•Etymology: 1350–1400; ME < L, =sen(ex) old, old man +-ior comp. adj. suffix
From formal English to slang. 2014.