adjective ( older, oldest or elder, eldest )
1. far advanced in years or life.
2. of or relating to a long life or persons advanced in years: to live to a good old age.
3. having the appearance or characteristics of advanced age: prematurely old.
4. having reached a specified age: a man thirty years old.
5. advanced in years, in comparison with others or relatively to a scale of age.
6. having existed long, or made long ago: old wine.
7. long known or in use; familiar: the same old excuse.
8. former, past, or ancient, as time, days, etc.; belonging to a past time: old kingdoms.
9. formerly in use (usu. in contrast to something specified as more recent or modern): he traded in his old car on a new one.
10. having been so formerly: the old boys of a school.
11. (of colours) dulled, faded or subdued.
12. deteriorated through age or long use; worn, decayed, or dilapidated.
13. ( cap. ) (in the history of a language) of or belonging to the earliest stage of development, preceding the period classified as Middle: Old English.
14. Physical Geography (of topographical features) far advanced in reduction by erosion, etc.
15. of long experience: an old hand at the game.
16. sedate, sensible, or wise, as if from mature years: an old head on young shoulders.
17. Colloquial (implying long acquaintance or friendly feeling): good old Henry.
18. Colloquial carried to great lengths; great: a fine old spree.
19. old or former time, often time long past.
20. old people collectively.
21. Colloquial ® old beer.
22. (used in combination) a person or animal of a specified age or age group: a class of five-year-olds.
23. the olds, Colloquial one's parents.
[ME; OE ald, eald, c. D oud, G alt; originally pp., and akin to Icel. ala nourish, bring up, and L alere nourish]
-- oldness, noun