Pronunciation: [wˈɒns and fɔːɹ ˈɔːl] (IPA) 
When spelling the phrase "once and for all," it's important to note that the "ce" in "once" is pronounced with an /s/ sound, as in "on-s." Additionally, the "or" in "for" is pronounced with an /ɔr/ sound, as in "fɔr." Finally, the "a" in "all" is pronounced with an /ɑ/ sound, as in "ɑl." So when spelling this phrase, it's important to remember to use the correct pronunciation for each of the individual words.
The phrase "once and for all" is an idiom that denotes the resolution or conclusion of a matter in a definitive, permanent, or conclusive manner. This expression emphasizes the idea of a final decision, action, or outcome that leaves no room for further debate, doubt, or ambiguity.
It often implies the settlement of a long-standing issue or disagreement that has been repeatedly discussed, decided upon, or postponed. By asserting that something will be addressed "once and for all," it stresses the need to bring closure and achieve a final resolution to prevent any future recurrence or lingering uncertainty.
The phrase is commonly used in various contexts, such as personal relationships, debates, legal proceedings, or conflicts. For instance, someone might declare that they want to discuss a certain issue with their partner "once and for all," indicating a genuine desire to address the matter completely and put it to rest permanently.
In summary, "once and for all" is an idiomatic expression that signifies the definitive and conclusive settlement of a matter. It conveys the notion of finality and the aim to resolve a long-standing issue, leaving no further room for discussion, disagreement, or speculation.
