Having lived or existed a long time; full of years; far advanced in years or life: applied to human beings, lower animals, and plants: as, an old man; an old horse; an old tree.Of (a specified) age; noting the length of time or number of years that one has lived, or during which a thing or particular state of things has existed or continued; of the age of; aged: as, a child three months old; a house a century old.Of or pertaining to the latter part of life; peculiar to or characteristic of those who are, or that which is, well advanced in years.Having the judgment or good sense of a person who has lived long and has gained experience; thoughtful; sober; sensible; wise: as, an old head on young shoulders.Of long standing or continuance.Experienced; habituated: as, an old offender; old in vice or crime.Of (some specified) standing as regards continuance or lapse of time.Not new, fresh, or recent; having been long made; having existed long: as, an old house; an old cabinet.Hence — That has long existed or been in use, and is near, or has passed, the limit of its usefulness; enfeebled or deteriorated by age; worn out: as, old clothes.Well-worn; effete; worthless; trite; stale: expressing valuelessness, disrespect, or contempt: as, an old joke; sold for an old song.Dating or reaching back to antiquity or to former ages; subsisting or known for a long time; long known to history.Ancient; antique; not modern; former: as, the old inhabitants of Britain; the old Romans.Early; pertaining to or characteristic of the earlier or earliest of two or more periods of time or stages of development: as, Old English; the Old Red Sandstone.Former; past; passed away; disused; contrasted with or replaced by something new as a substitute; subsisting before something else: as, he built a new house on the site of the old one; the old régime; a gentleman of the old school; he is at his old tricks again.Long known; familiar; hence, an epithet of affection or cordiality: as, an old friend; dear old fellow; old boy.Old-fashioned; of a former time; hence, antiquated: as, an old fogy.Great; high: an intensive now used only when preceded by another adjective also of intensive force: as, a fine old row; a high old time.The mass of land comprising Europe, Asia, and Africa, in contradistinction to the new continent, consisting of North and South America.The form of black letter used by English printers of the sixteenth century.In mining, ancient workings: a term used in Cornwall.A full-grown male kangaroo.A man having habits or opinions considered peculiar to old women.An apparatus for curing smoky chimneys; a chimney-cap or cowl.See oldwife.In physical geography, far advanced in the geographical cycle: noting a stage in which land-forms have been reduced to small relief and in which all processes of erosion and transportation have become relatively inactive.A pivoted attachment of a pump-rod to a bell-crank.