- Suffix used to indicate the age of something or someone, in terms of years.
2011 September 28, Tom Rostance, “Arsenal 2-1 Olympiakos”, in BBC Sport:
- But the home side were ahead in the eighth minute through 18-year-old Oxlade-Chamberlain.
2013 July 19, Peter Wilby, “Finland spreads word on schools”, in The Guardian Weekly, volume 189, number 6, page 30:
- Imagine a country where children do nothing but play until they start compulsory schooling at age seven. Then, without exception, they attend comprehensives until the age of 16. […] Children address teachers by their first names. Even 15-year-olds do no more than 30 minutes' homework a night.
A seventy-year-old man's body was found in a river last night.
The suffix is used for nouns as well as adjectives, e.g.
- I am in love with a thirty-year-old. (noun)
- The 200-year-old remains were found last night. (adjective)
Terms related to -year-old
- (smaller divisions): -month-old, -week-old, -day-old, etc.
- (young animals): See youngling
- (under 2 years old): See baby
- (2–4 years old): See toddler
- (5-year-old): quinquennarian
- (6-year-old): sexennarian
- (7-year-old): septenary, septenarian
- (8–12 years old): See preteen
- (13–19 years old): See teenager
- (a minor): See child
- (20–29 years old): twentysomething
- (30–39 years old): thirtysomething
- (40–49 years old): fortysomething, quadragenarian, quadragenarious
- (50–59 years old): fiftysomething, quinquagenarian, quinquagenary, quintagenarian
- (60–69 years old): sixtysomething, sexagenarian, sexagenary
- (70–79 years old): seventysomething, septagenerian, septagenary
- (80–89 years old): eightysomething, octagenarian, octagenary
- (90–99 years old): ninetysomething, nonagenarian, nonagenary
- (100-year-old): hundredsomething, centagenarian centenary, centenarian, centenarial
- (lasting 40 years): quadragesimal
suffix used to indicate the age of something or someone, in terms of years