Today’s Question: I recently started looking at the Keyword Suggestions in Lightroom Classic, and from my admittedly limited experience it seems like the suggestions are somewhat random. How does Lightroom Classic determine which suggestions to offer?
Tim’s Quick Answer: The keywords listed under Keyword Suggestions in Lightroom Classic are based on patterns of how keywords have been used, particularly in the context of multiple keywords matching across other images.
More Detail: The keywords listed under the Keyword Suggestions heading in the Keywording section of the right panel in the Library module can sometimes seem quite random. For example, looking at one of my photos captured on Rapa Nui (Easter Island) two of the suggestions are “Croatia” and “Opatija” (a city in Croatia).
Those two suggestions don’t seem to have any connection to Rapa Nui, and yet the suggestions make perfect sense. The photo I was looking at includes moai statues, and so among other keywords that had been applied was “statue”. One of the photos I captured in Opatija, Croatia, was of a statue overlooking the sea, and I had assigned “statue” as a keyword to that photo.
So, Lightroom Classic is looking for patterns related to keyword use, and offering suggestions based on that use. In the absence of other connecting keywords you might simply see some of your most frequently used keywords, but in many cases the suggestions will be a good fit.
For example, if I assign a keyword of “Palouse” to a photo captured in the Palouse region of eastern Washington State, the keyword suggestions include “wheat”, “barn”, and “farmhouse”, among others. Similarly, if I add “wheat” as a keyword to a photo, I would expect the suggestions to include things like “crop duster”, “Palouse”, and “barn”.
Admittedly, because it is common for the Keyword Suggestions to include keywords that don’t actually relate to the current image, the value of this feature can be a bit inconsistent. In my view the Keyword Suggestions list is best used for a quick review to make sure you haven’t forgotten any keywords for a photo, rather than as a primary way of assigning keywords to an image.

