The meaning of “ὄρος”

“And Jesus said unto them, Because of your unbelief: for verily I say unto you, If ye have faith as a grain of mustard seed, ye shall say unto this mountain, Remove hence to yonder place; and it shall remove; and nothing shall be impossible unto you.”

“And it came to pass, that on the next day, when they were come down from the hill, much people met him.”

“And when forty years were expired, there appeared to him in the wilderness of mount Sina an angel of the Lord in a flame of fire in a bush.”

“For this Agar is mount Sinai in Arabia, and answereth to Jerusalem which now is, and is in bondage with her children.”

“And this voice which came from heaven we heard, when we were with him in the holy mount.”