Being that this is such an open-ended question, my response will be fairly general.
Hunting gear is anything that aids a hunter in their pursuit of hunting wild game can be considered hunting equipment. Almost anything worn or used by hunters can be classified as hunting gear, including but not limited to boots, pants, jackets, helmets, binoculars, rifles, equipment (rangefinder, scent blocks, tree stands, bipod), and so on.
What is the essential hunting gear for beginners?
The gun, the bow, the ammunition, the arrows…
Proper protective equipment, as mandated by local legislation.
Clothing.
gloves (nitrile gloves – 2–3 pairs)
Binoculars.
Two knives (one large enough for skinning, the other smaller) and a method for sharpening them.
Carcass holders or meat coolers.
Some 550 cable.
We need H2O, grub, and DEET.
Indicators (such as a compass or GPS)
Area maps.
Line of sight tape (for trail marking.)
I use that gear for almost every hunt, whether for squirrels, birds, or moose.
Beyond that, there will be some factors that are unique to your hunt. When I go moose-hunting, for instance, I bring a plastic toboggan to transport the kill. I use a backpack with a cargo frame for my Caribou hunts. Because I am a resident of Alaska, I always bring bear spray with me. In some places, that might not be necessary.