"Not this one" is a phrase used to express the exclusion or negation of a specific object or option from a given set or range of choices. It conveys the speaker's preference for a different option or the rejection of the current choice in favor of an alternative.
The phrase implies that the speaker has evaluated multiple options and has found the current one to be unsatisfactory or inferior in some way. It may stem from personal preference, previous experience, or a comparison made between the current option and an alternative that is deemed more desirable.
In a practical context, "not this one" can often be used when making selections or decisions. For example, when considering a series of photographs or paintings, a person might use this phrase to express a rejection of a particular piece, indicating that it does not meet their preferences, tastes, or requirements.
The phrase can also be used metaphorically in various situations not related to choices, such as expressing discontent with the current state of affairs or distancing oneself from a particular person or group. In these cases, the phrase emphasizes the speaker's clear disapproval or disassociation from a specific element or circumstance.
Overall, "not this one" serves as a concise, straightforward way to communicate a rejection or exclusion of a specific option or object, conveying the speaker's preference for an alternative and their dissatisfaction or disagreement with the current choice.
