Reference fields let you display data from different collections in the same element. You can display data from different collections using reference fields in:
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tables
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galleries
Like in these examples.
https://support.wix.com/en/article/about-reference-fields-in-database-collections
https://support.wix.com/en/article/displaying-content-from-multiple-database-collections-using-reference-fields-4034931
You can also connect dropdowns to reference fields too.
https://support.wix.com/en/article/about-user-input-elements
Otherwise you can combine separate fields like here.
https://www.wix.com/corvid/forum/community-discussion/presenting-multiple-data-fields-in-a-single-text-field