Elohim
A term reflecting the ancient world practice of having a kind of pantheon of gods for each nation. God merely used the existing concept and made it clear that He Himself is the only member of the Israelites’ pantheon of gods.
So, say for Egypt (ancient), its Elohim (pantheon) would be Osiris, Horus, Amun, Isis, and others. Whereas for Israel its Elohim is (should be) Yahweh alone.
An analogy would be if an absolute monarch said to a country “I am your political party” even though ‘party’ implied a group of people.
