עֵר

Based on the provided lexicon data, the word "er" (Hebrew: ֵר, Strong's number H6147H) is a proper name referring to a specific person. It appears just once in the Bible, suggesting that this individual is a singular, unique figure. Given that "er" is categorized under the semantic domain of "Proper Name: Person", we can infer that the word functions as a designation or label for this individual, rather than carrying any inherent meaning or significance. The occurrence of "er" being limited to just one instance implies that the significance or relevance of this person is specific to this single passage, rather than a recurring concept throughout the text. The rarity of this proper name in the Bible means that we can draw no broader conclusions about its cultural or personal significance beyond the immediate context in which it appears.