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go from zero to hero
To change an outcome, one's situation, or oneself from being particularly unsuccessful, negative, unfortunate, or unpopular to being especially successful, positive, fortunate, or popular. After his parents won the lottery, John went from zero to hero in his high school overnight. With computer programming becoming an increasingly in-demand skill, many who might have been picked on in high school are now going from zeros to heroes.
The time at which something starts. I have so much studying left to do before the exam, and zero hour is 8 AM! Zero hour for our vacation is 4:30—the minute we're all done work!
zero in (on someone or something)
to aim directly at someone or something. The television camera zeroed in on the little boy scratching his head. The commercial zeroed in on the glass of cola. Mary is very good about zeroing in on the most important and helpful ideas.
absolutely no toleration of even the smallest infraction of a rule. Because of the zero tolerance rule, the kindergartner was expelled from school because his mother accidentally left a table knife in his lunch box.
zero in (on something)
to direct your attention to one particular thing My son's teacher was able to zero in and deal with his problems. She needs to really zero in on what's important instead of going off on a lot of tangents.
a zero-sum game
a situation where two people compete and if one of them wins anything, exactly the same must be lost by the other Radio has become a zero-sum game, with stations gaining listeners only at each other's expense.
See also: game
zero in on
1. Aim precisely at a target, as in They zeroed in on the last snipers. [c. 1940]
2. Direct one's attention to, concentrate or focus on, as in We must zero in on the exact combination of ingredients, or The whole class zeroed in on the new assignment. This usage transfers aiming a firearm to directing one's attention. [Mid-1900s]
3. Converge on, close in on, as in The children zeroed in on the electric train display. [Mid-1900s]
1. To aim or focus something, such as a weapon or telescope, toward a specific target or location: The enemy spotted the approaching aircraft and zeroed in their missiles. Zero the telescopes in on the watchtower.
2. To identify with increasing accuracy a property of something, especially its location: We are finally zeroing in on the location of the smuggling ring.
3. To adjust the aim or sight of a weapon by repeated firings: The soldiers fired a few rounds in order to zero in their rifles. I zeroed the gun in at 100 yards.
4. zero in on To direct one's gaze or attention to something: The children zeroed in on the display of toys in the store window.
1. To reset something, such as a counter or clock, to zero: The timekeeper forgot to zero out the stopwatch in between sprints. I zeroed the odometer out and measured the length of the road.
2. To reduce some quantity to zero: This final payment will zero out your balance on the loan. I called the bank and zeroed out my account.
3. To cut off the funding for something, such as a government program: The new administration is planning to zero out subsidies and benefits for illegal aliens. Our social assistance program had funding until the government zeroed it out of the budget.
n. an insignificant person; a nobody. I want to be more in life than just another zero.