(Hebrew אדם aleph, daleth, mem) Literally, "The first." In the Judeo-Christian tradition, the name of the first human being. The name Adam actually has many esoteric meanings that are unknown to the public. Primarily, Adam can refer to different levels of the inner Being, such as Adam Kadmon, the perfect human being, in contrast to the sinning Adam or terrestrial person expelled from Eden.
"Every spirit [ruach] is called Adam [man], which means that only the aspect of the light of the spirit that is enclothed within the body is called Adam [man]. So the body of the spirit of the holy side is only a covering; in other words, the spirit is the actual essence of man and the body is only its covering. But on the other side, the opposite applies. This is why it is written: "you have clothed me with skin and flesh..." (Iyov 10:11). The flesh of man is only a garment covering the essence of man, which is the spirit [ruach]. Everywhere it is written the flesh of man, it hints that the essence of man [Adam] is inside. The flesh is only a vestment for man, a body for him, but the essence of man [Adam] is the aspect of his spirit [ruach]." - Zohar 1A:10:120
"We learned that man has names in different stages, Adam (man), Gever (male man), Enosh (human), Ish (person). The greatest is Adam, as written, "So Elohim created man (Heb. adam) in His own image" (Beresheet 1:27), and, "for in the image of Elohim made He man (Heb. adam)" (Beresheet 9:6), instead of using Gever, Enosh or Ish. Rabbi Yehuda said, in that case, it is written, "If any man (Heb. adam) of you bring an offering to Hashem" (Vayikra 1:2). Who needs to bring an offering? Only whoever sins." - Zohar 15:22:106
Genesis 1:26: "And Elohim said; Let us make Adam in our image, after our likeness: and let them have dominion: