Bi-weekly is ambiguous, and can either mean twice a week, or once every two weeks.
No, half of twice is once.
The Letter "e"
Twice-differentiable simply means that the function can be differentiated twice. eg. If y = x^5 (^5 means to the power of 5). Then y' = 5x^4 (i.e. differentiating once) Then y'' = 20x^3 (differentiating twice)
It means you have been pregnant twice and delivered a baby once and have one living baby.
Measure twice, cut once..
Does it mean what it seems to mean? That is how you tell.Let's look at it - "Once a man, twice a child" would mean that you are a child twice, and a man once - or, you are childish, then you grow up, then you grow old and become childish again.So it's not an idiom because an idiom would not make sense unless you knew exactly what it meant. It must be a proverb.
Measure twice cut once
Measure twice, cut once.
The expression is akin to once bitten twice shy.
Making a mistake once is alright, but don't make it twice.
The first time you have been fooled, you can be forgiven as it being unexpected. The second time you have been fooled means you are foolish for falling for it AGAIN! Actually the quote is "Fool me once it's your fault, fool twice it's mine."
You mean 'once in a minute, twice in a moment. but not once in a thousand years. Answer is the letter 'm'
The full saying is "Fool me once, shame on you; fool me twice, shame on me." It means that being tricked or deceived once is the fault of the person who tricked you, but if you allow it to happen again, then you are also at fault for not learning from the mistake.
Repeated measurement ensures that errors are avoided or reduced. In woodwork there is an old saying, "Measure twice, Cut once."
What do you mean?
once, twice, three times have won.