Boyd’s Bible Dictionary:

(made holy). A holy or sanctified place (Psa. 20:22Send thee help from the sanctuary, and strengthen thee out of Zion; (Psalm 20:2)). The secret part of the temple in which the ark of the covenant was kept, and which none but the high priest might enter, and he only once a year, on the day of solemn expiation (Lev. 4:66And the priest shall dip his finger in the blood, and sprinkle of the blood seven times before the Lord, before the vail of the sanctuary. (Leviticus 4:6)). Also applied to the furniture of the holy place (Num. 10:2121And the Kohathites set forward, bearing the sanctuary: and the other did set up the tabernacle against they came. (Numbers 10:21)); to the apartment where the altar of incense, table of shewbread and holy candlestick stood (2 Chron. 26:1818And they withstood Uzziah the king, and said unto him, It appertaineth not unto thee, Uzziah, to burn incense unto the Lord, but to the priests the sons of Aaron, that are consecrated to burn incense: go out of the sanctuary; for thou hast trespassed; neither shall it be for thine honor from the Lord God. (2 Chronicles 26:18)); to the whole tabernacle or temple (Josh. 24:2626And Joshua wrote these words in the book of the law of God, and took a great stone, and set it up there under an oak, that was by the sanctuary of the Lord. (Joshua 24:26); 2 Chron. 20:88And they dwelt therein, and have built thee a sanctuary therein for thy name, saying, (2 Chronicles 20:8)). “Sanctuary of strength,” because belonging to God (Dan. 11:3131And arms shall stand on his part, and they shall pollute the sanctuary of strength, and shall take away the daily sacrifice, and they shall place the abomination that maketh desolate. (Daniel 11:31)). Any place of public worship of God (Psa. 73:1717Until I went into the sanctuary of God; then understood I their end. (Psalm 73:17)). Heaven (Psa. 102:1919For he hath looked down from the height of his sanctuary; from heaven did the Lord behold the earth; (Psalm 102:19)). Place of refuge (Isa. 8:1414And he shall be for a sanctuary; but for a stone of stumbling and for a rock of offence to both the houses of Israel, for a gin and for a snare to the inhabitants of Jerusalem. (Isaiah 8:14); Ezek. 11:1616Therefore say, Thus saith the Lord God; Although I have cast them far off among the heathen, and although I have scattered them among the countries, yet will I be to them as a little sanctuary in the countries where they shall come. (Ezekiel 11:16)). Land of Israel called God’s sanctuary (Ex. 15:1717Thou shalt bring them in, and plant them in the mountain of thine inheritance, in the place, O Lord, which thou hast made for thee to dwell in, in the Sanctuary, O Lord, which thy hands have established. (Exodus 15:17)). “Worldly sanctuary,” one of an earthly type (Heb. 9:11Then verily the first covenant had also ordinances of divine service, and a worldly sanctuary. (Hebrews 9:1)).

Concise Bible Dictionary:

This is “holy [place],” and is applied in the Old Testament both to the tabernacle and to the temple as a whole, and to the “holy [place]” and “most holy” in distinction from the other parts: “Thy way, O God, is in the sanctuary” (Psa. 77:1313Thy way, O God, is in the sanctuary: who is so great a God as our God? (Psalm 77:13)). The sanctuary was where, in retirement from man and the world, God’s glory was seen, and His mind apprehended; it was where the sacrifices were offered, and God was worshipped.
In the New Testament also the word sanctuary is applied to the holy and most holy parts of the tabernacle (Heb. 9:1-81Then verily the first covenant had also ordinances of divine service, and a worldly sanctuary. 2For there was a tabernacle made; the first, wherein was the candlestick, and the table, and the showbread; which is called the sanctuary. 3And after the second veil, the tabernacle which is called the Holiest of all; 4Which had the golden censer, and the ark of the covenant overlaid round about with gold, wherein was the golden pot that had manna, and Aaron's rod that budded, and the tables of the covenant; 5And over it the cherubims of glory shadowing the mercyseat; of which we cannot now speak particularly. 6Now when these things were thus ordained, the priests went always into the first tabernacle, accomplishing the service of God. 7But into the second went the high priest alone once every year, not without blood, which he offered for himself, and for the errors of the people: 8The Holy Ghost this signifying, that the way into the holiest of all was not yet made manifest, while as the first tabernacle was yet standing: (Hebrews 9:1‑8); Heb. 10:1919Having therefore, brethren, boldness to enter into the holiest by the blood of Jesus, (Hebrews 10:19); Heb. 13:1111For the bodies of those beasts, whose blood is brought into the sanctuary by the high priest for sin, are burned without the camp. (Hebrews 13:11)). Here it is called “worldly,” (κοσμκός) in reference possibly to its order, and its contrast to the true tabernacle which the Lord pitched, and not man. The word “sanctuary” in Hebrews 8:22A minister of the sanctuary, and of the true tabernacle, which the Lord pitched, and not man. (Hebrews 8:2) is literally holy (places or things); of these Christ is minister. The sanctuary for the Christian consists in the light of the glory of God in the face of Jesus Christ. God is revealed without a veil.