Pronunciation: [ɒnðɪ ɐsˈʌmpʃən] (IPA) 
The phrase "on the assumption" is spelled with the IPA phonetic transcription /ɒn ði əˈsʌm(p)ʃ(ə)n/. The "o" sound is pronounced as the "ah" sound, the "th" sound is pronounced as "ð", and the "u" sound is pronounced as "ə". The word "assumption" is spelled with two "s"s and an "m" in the middle. The correct spelling is important to ensure clear communication and understanding in written and spoken language.
"On the assumption" is a phrase that refers to a situation or statement that is made based on a particular belief or supposition. It indicates that information, reasoning, or decision-making is founded upon an assumed premise or condition.
This phrase implies that there is a specific assumption that underlies the subsequent actions or deductions and serves as the basis for further analysis or consideration. It suggests that the speaker or writer is working or commenting within a framework that hinges on a particular assumption.
When someone says or does something "on the assumption," they are acknowledging that the validity or accuracy of their statement or action depends on the truth or relevance of the assumed condition. It acknowledges that if the assumption is incorrect or proven false, the subsequent information, reasoning, or decision may also be flawed.
For example, if someone says, "On the assumption that prices will increase, we should invest in stocks," they are suggesting that the decision to invest in stocks is contingent upon the belief that prices will rise. If this assumption turns out to be untrue, then the decision to invest in stocks may no longer be wise.
In summary, "on the assumption" is a phrase used to highlight that a statement or action is made based on a presumed condition or hypothesis, and its validity hangs on the accuracy of that assumption.
