thirty

Related to thirty: Thirty Years War

oh dark thirty

A non-specific time in the early morning before the sun has risen. Based on the way in which military time is said aloud. ("Oh" is a common way of saying the number 0.) Why on earth are we meeting at oh dark thirty? The only thing we should be doing at this hour is sleeping! We'll have to leave at oh dark thirty if we want to reach Las Cruces before sundown.
See also: dark, oh, thirty

thirty-something

1. adjective Of an unspecified age in one's thirties. He looks like he's in his 50s, but he's really just thirty-something.
2. noun A person who is in their thirties. Usually used in the plural. With so many college students in this town, it's nice to find a place that's geared more for thirty-somethings.

zero dark thirty

A non-specific time in the early morning before the sun has risen. Based on the way in which military time is said aloud. Why on earth are we meeting at zero dark thirty? The only thing we should be doing at this hour is sleeping! We'll have to leave at zero dark thirty if we want to reach Las Cruces before sundown.
See also: dark, thirty, zero
Farlex Dictionary of Idioms.

thirty-something (or forty-something, etc.)

an unspecified age between thirty and forty (forty and fifty, etc.). informal
Farlex Partner Idioms Dictionary

thirty pieces of silver

The symbol of treason. This term comes from the Bible, where Judas’s price for betraying Jesus was thirty pieces of silver (Matthew 26:15). It has symbolized betrayal ever since.
See also: of, piece, silver, thirty
The Dictionary of Clichés by Christine Ammer
See also:
  • at one time or another
  • any time means no time
  • any day
  • any old time
  • against time
  • against the clock
  • any time
  • (it's) time to run
  • anytime
  • (it's) time to push along
References in classic literature
Even when I took command, she was fit only for the junk pile; but the world-old parsimony of government retained her in active service, and sent two hundred men to sea in her, with myself, a mere boy, in command of her, to patrol thirty from Iceland to the Azores.
BANKING AND CREDIT NEWS-April 26, 2019-Alt Thirty Six raises USD 10m in Series A funding round to support cannabis payment solution platform
M2 EQUITYBITES-April 26, 2019-Alt Thirty Six raises USD 10m in Series A funding round to support cannabis payment solution platform
Global Banking News-April 26, 2019-Alt Thirty Six raises USD 10m in Series A funding round to support cannabis payment solution platform
The US State Department press note in this regard also states that 'the proposed sale of this equipment and support will not alter the basic military balance in the region' and that twenty to thirty US government officials or contractor representatives will be present in India for this project
In Thirty Days, Belgian novelist Annelies Verbeke offers readers an inventive glimpse into the realities of the human condition through the eyes of Alphonse, a Senegalese immigrant.
PESHAWAR -- Kohat police has arrested three smugglers trying to smuggle thirty one kilogram Cannabis in a car on Sunday.
The subscription of the participating securities, subject of the issue, may be carried out for a period of thirty (30) days beginning to run from the date of publication of the notice in the Official Gazette of the Republic of Tunisia (JORT).
Night Time It's three thirty three in the morning Maybe it's three thirty three at night...
Summary: New Delhi [India], June 12 (ANI): Tomo Milicevic, the lead guitarist of 'Thirty Seconds to Mars' has quit the rock band.
Originally published in 1859, Thirty Years in the Arctic Regions is Franklin's own record of his two overland expeditions, begun in 1816 and 1825, which took him to what is now the Northwest Territory of Canada.
Islamabad thirty-two degree centigrade, Lahore thirty-five, Karachi thirty, Peshawar thirty-three, Quetta and Gilgit nineteen, Murree twenty-two and Muzaffarabad twenty-one degree centigrade.
Synopsis: Written from the experienced viewpoint of skilled artist Andrew Jay Svedlow, "Thirty Works of Art Every Student Should Know" examines thirty pieces of world-renown artwork, each of which representing a different style and movement from the vast history of art.
TEHRAN (FNA)- Thirty Ezadis escaped from the Islamic State of Iraq and the Levant (ISIL) terrorists in Tal Afar in Iraq's Nineveh province on Tuesday.
| ISLAMABAD, Feb 2 (KUNA) -- The death toll in Friday's suicide blast that took place in Pakistan's northern town of Hangu has increased to thirty as the religious groups announced to observe thirty days of mourning to protest the incident.