The idiom "acid test" has its origins in the field of metallurgy, where acids were used to determine the purity and authenticity of precious metals like gold. If a metal passed the "acid test," it remained unaltered by the acid and was considered genuine. In a broader sense, the phrase has evolved to describe a rigorous and definitive examination or assessment that is used to determine the true value, quality, or effectiveness of something.

What is the origin of the idiom "acid test" and when to use it?

acid test

https://tts.langeek.co/read?text=YWNpZCB0ZXN0&hash=2eb37a66e339e53c5fde658ff3cb637a24776129&lang=en&cache-only=0&driver=googletts&accent=US

a fighting chance

https://tts.langeek.co/read?text=YSBmaWdodGluZyBjaGFuY2U&hash=21678593244edd275528c994557b67a52c8d2fbb&lang=en&cache-only=0&driver=googletts&accent=US

to augur

https://tts.langeek.co/read?text=dG8gYXVndXI&hash=80b01a6913bef952122a63d0a97d0de5b687e99f&lang=en&cache-only=0&driver=googletts&accent=US

auspicious

https://tts.langeek.co/read?text=YXVzcGljaW91cw&hash=9e6eb0905beb73c9d243054a07af2ecf3163448d&lang=en&cache-only=0&driver=googletts

auspiciously

https://tts.langeek.co/read?text=YXVzcGljaW91c2x5&hash=02a5522164b3e2c9cf2019d4b02bf4b3ec2d85d7&lang=en&cache-only=0&driver=googletts&accent=US

bright

https://tts.langeek.co/read?text=YnJpZ2h0&hash=9cf205b0f6280008f9445816f7560c76f3cf5702&lang=en&cache-only=0&driver=googletts

the (cards|odds) are stacked in {one's} favor

https://tts.langeek.co/read?text=dGhlIGNhcmRzIGFyZSBzdGFja2VkIGluIG9uZSdzIGZhdm9y&hash=659519b1f4890bd935587eab9d4c6fc83b0115ba&lang=en&cache-only=0&driver=googletts&accent=US

to fancy

https://tts.langeek.co/read?text=dG8gZmFuY3k&hash=365077197deccfd51cf05bd1a775d1987803efbf&lang=en&cache-only=0&driver=googletts&accent=US

to flatter to deceive

https://tts.langeek.co/read?text=dG8gZmxhdHRlciB0byBkZWNlaXZl&hash=eeef2add25100c1970cab481ccf25bcbc68ce43b&lang=en&cache-only=0&driver=googletts&accent=US

future

https://tts.langeek.co/read?text=ZnV0dXJl&hash=f84295dd67e656dc647c6b4173d933eb9746f2d4&lang=en&cache-only=0&driver=googletts&accent=US

golden rule

https://tts.langeek.co/read?text=Z29sZGVuIHJ1bGU&hash=2bbd661e0e1897c88d7b6b3c2c319b6b22f79689&lang=en&cache-only=0&driver=googletts

great oaks from little acorns grow

https://tts.langeek.co/read?text=Z3JlYXQgb2FrcyBmcm9tIGxpdHRsZSBhY29ybnMgZ3Jvdw&hash=49e23526243e99cac79ef781bdf412f8075509ea&lang=en&cache-only=0&driver=googletts&accent=US

on {one's} side

https://tts.langeek.co/read?text=b24gb25lJ3Mgc2lkZQ&hash=12650df33dd8d9e6b9d781c8f5c05cf122a0665c&lang=en&cache-only=0&driver=googletts&accent=US

to [hope] for the best

https://tts.langeek.co/read?text=dG8gaG9wZSBmb3IgdGhlIGJlc3Q&hash=6d0aec7e591c07b8deb42fd39945e08ee009650f&lang=en&cache-only=0&driver=googletts&accent=US

hopeful

https://tts.langeek.co/read?text=aG9wZWZ1bA&hash=b1a207b873a391c6834efd0cd38b38a43cd2ddc4&lang=en&cache-only=0&driver=googletts

it will be all right on the night

https://tts.langeek.co/read?text=aXQgd2lsbCBiZSBhbGwgcmlnaHQgb24gdGhlIG5pZ2h0&hash=c66c9a4b5c02fa65c7551b9a4ce69d0ec11583af&lang=en&cache-only=0&driver=googletts&accent=US

to [look] good

https://tts.langeek.co/read?text=dG8gbG9vayBnb29k&hash=0be9618b94f78688347ed4046d40f7653298e5f2&lang=en&cache-only=0&driver=googletts&accent=US

opportune

https://tts.langeek.co/read?text=b3Bwb3J0dW5l&hash=ac56f3e22ac6da02a79b9b43208fd1a0f788caae&lang=en&cache-only=0&driver=googletts

optimism

https://tts.langeek.co/read?text=b3B0aW1pc20&hash=565b9dd11c0c8d7ccfb10ea96df93693b8c84d37&lang=en&cache-only=0&driver=googletts

optimistic

https://tts.langeek.co/read?text=b3B0aW1pc3RpYw&hash=8afce652aeffccb06a8927bb14551d11da62cb09&lang=en&cache-only=0&driver=googletts

over-optimistic

https://tts.langeek.co/read?text=b3Zlci1vcHRpbWlzdGlj&hash=88fd702aa2283212e87491cb269d13e104ee3e98&lang=en&cache-only=0&driver=googletts

to [pin] {one's} (hopes|faith) on {sb/sth}

https://tts.langeek.co/read?text=dG8gcGluIG9uZSdzIGhvcGVzIG9uIHNvbWVib2R5IG9yIHNvbWV0aGluZw&hash=72384d4348cc9784a6f839228b342211b5399e70&lang=en&cache-only=0&driver=googletts&accent=US

promise

https://tts.langeek.co/read?text=cHJvbWlzZQ&hash=619b5d115b8649699c00c69703b946a460672e02&lang=en&cache-only=0&driver=googletts

promising

https://tts.langeek.co/read?text=cHJvbWlzaW5n&hash=89ec6a346cdf26f1614719c71d0e461ae1261ca8&lang=en&cache-only=0&driver=googletts

propitious

https://tts.langeek.co/read?text=cHJvcGl0aW91cw&hash=1cc2675effdfaba6ae196d166326faf97f7f34d9&lang=en&cache-only=0&driver=googletts&accent=US

prospect

https://tts.langeek.co/read?text=cHJvc3BlY3Q&hash=05079db64d9e6d00299e1e8634d03c22bcf4510b&lang=en&cache-only=0&driver=googletts

rosy

https://tts.langeek.co/read?text=cm9zeQ&hash=28a93fb21dd7bf31935eb94a7194dd0b4806fdce&lang=en&cache-only=0&driver=googletts&accent=US

set fair

https://tts.langeek.co/read?text=c2V0IGZhaXI&hash=e8a05ee0cfc649d06874672050cc6adfea657416&lang=en&cache-only=0&driver=googletts&accent=US

The phrase "the sky is the limit" is an idiom used to convey that there are no fixed boundaries or restrictions on what one can achieve or aspire to. The origin of this phrase is not precisely documented, but it likely draws from the idea that the sky, as a limitless expanse above us, represents boundless opportunities.

What is the origin of the idiom "the sky is the limit" and when to use it?

the sky is the limit

https://tts.langeek.co/read?text=dGhlIHNreSBpcyB0aGUgbGltaXQ&hash=d9e4255b8d3ec0b55a539ff963b60520d83b6304&lang=en&cache-only=0&driver=googletts

third time's the charm

https://tts.langeek.co/read?text=dGhpcmQgdGltZSdzIHRoZSBjaGFybQ&hash=a729768f94ba7a656e15dba0d8d6ec0294b529ee&lang=en&cache-only=0&driver=googletts&accent=US

to tip

https://tts.langeek.co/read?text=dG8gdGlw&hash=fee10521a3bed10283cfb50e250f8b81f4b95035&lang=en&cache-only=0&driver=googletts

Here you will learn some English words related to the way to success such as "auspicious", "fancy", and "optimism".

Success on the Way

English Words for "Success on the Way"