Use case
A learner reading Chinese articles or books on macOS, on encountering an unfamiliar word or phrase, needs a definition without leaving the original text so they can keep reading.
The existing approach is switching to a browser search, the system dictionary, or a third-party dictionary app to look up words one by one.
Looking up a word requires switching to a browser or dictionary app, breaking reading rhythm, and the repeated switching cost is high in long texts; the candidate material offers no direct evidence of user complaints or usage frequency.
xOcto's call
Demand is evidenced
The trend is that the high-frequency lookup action moves from the browser back into the reading context, cutting the interruption of switching windows; the entry point is people with dense lookup needs such as Chinese learners, classical-text readers or technical-documentation readers, overlaying definitions on the original text rather than building another general dictionary.
Reason to use it
Why users would choose it
Inference: compared with switching windows to look up words, it takes the selected text in place and returns a definition, removing the steps of changing apps and relocating the passage, so learners who read Chinese continuously for long stretches are more likely to choose it; the candidate material provides no retention or repeat-use evidence.
Where the easy answer breaks down
The tension worth following
An English validation note will follow from the public evidence.
If this is your job
Worth trying. Inference: compared with switching windows to look up words, it takes the selected text in place and returns a definition, removing the steps of changing apps and relocating the passage, so learners who read Chinese continuously for long stretches are more likely to choose it; the candidate material provides no retention or repeat-use evidence.
Entry and what to borrow
The trend is that the high-frequency lookup action moves from the browser back into the reading context, cutting the interruption of switching windows; the entry point is people with dense lookup needs such as Chinese learners, classical-text readers or technical-documentation readers, overlaying definitions on the original text rather than building another general dictionary.