“Ghost” From Boyd’s Bible Dictionary:
(that terrifies). The spirit (Matt. 27:50).
“Spirit” From Boyd’s Bible Dictionary:
(breath). The breath (2 Thess. 2:8). The vital principle (Eccl. 8:8). Elsewhere, the soul. [SOUL.] Holy Spirit is a person of the Godhead (Matt. 28:19; 2 Cor. 13:14). Though Holy Spirit and Holy Ghost are synonymous in meaning.
“Ghost” From Concise Bible Dictionary:
1. nephesh, “animal life, soul” (Job 11:20; Jer. 15:9).
2. πνεῦμα, “spirit” (Matt. 27:50; John 19:30). The word “ghost” is used in the AV only in reference to the Holy Spirit (see HOLY GHOST), and to death, by the “ghost” being given up, or the spirit or life being breathed out.
3. gava, “to expire, die” (Gen. 25:8,17; Gen. 35:29; Gen. 49:33; Job 3:11; Job 10:18; Job 13:19; Job 14:10; Lam. 1:19).
4. ἑκπνέω, “to breathe out, expire” (Mark 15:37,39; Luke 23:46).
5. ἑκψύψω, “to breathe out, expire” (Acts 5:5,10; Acts 12:23).
“Holy Ghost, Holy Spirit” From Concise Bible Dictionary:
The third Person in the Trinity, as seen in the formula of baptism (Matt. 28:19). The Spirit moved upon the face of the waters at the creation (Gen. 1:2); and He came upon certain persons in the Old Testament to fulfill the purposes of God. David asked that the Holy Spirit might not be taken from him (Psa. 51:11); which stands in contrast to the indwelling of the Holy Spirit in Christians, for He abides with them. It is by the operation of the Spirit that they are born anew, and He is the seal of their faith in Christ, and the earnest of their inheritance above (John 3:5; Eph. 1:13-14). He is their COMFORTER or Advocate (παράκήτος, one who manages their affairs) on earth, as Christ is the same in heaven (John 14:16, 26).
Though the Holy Spirit influenced and came upon the Old Testament saints, He did not come personally until Christ had ascended (John 16:7). Many passages prove His personality—a matter of great importance, often lost sight of by those who constantly speak of Him as an influence. Ananias lied to the Holy Spirit (Acts 5:3). “The Holy Ghost said, Separate me Barnabas and Saul” (Acts 13:2). “Dividing.... as He will” (1 Cor. 12:11). The Holy Spirit directed the labors of Paul and his companions (Acts 16:6-7), and the Lord Jesus cast out demons by the Spirit of God (Matt. 12:28).
His presence and operations here are some of the fruits of Christ’s exaltation. He forms Christ in the believer. He is also the power of life and the power for testimony. Indwelling the saints individually, He forms them collectively into one body, they are also builded together for a habitation of God through the Spirit (1 Cor. 3:16; Eph. 2:22).
To be indwelt by the Holy Spirit is an immense favor, for He is a divine Person: any one so indwelt is not in the flesh, but in the Spirit. He is the Spirit of sonship and by Him the believer cries, Abba Father. Christians are exhorted to be guided by Him, and neither to quench nor to grieve that holy One. Our responsibility is to “walk in the Spirit” (Gal. 5:16).
His presence on earth is a demonstration as to the world of sin, of righteousness, and of judgment (John 16:8-11).
“Spirit” From Concise Bible Dictionary:
See SOUL.
“Spirit, the Holy” From Concise Bible Dictionary:
See HOLY SPIRIT.
“Spiritual” From Concise Bible Dictionary:
This word occurs often in the New Testament. It stands in contrast to what is earthly (Rom. 15:27); and to what is carnal, or of the flesh (1 Cor. 3:1). In short it may be said to be that which is of the Holy Spirit, in contrast to what is of the natural man.
Strong’s Dictionary of Greek Words:
Meaning:
from 4154; a current of air, i.e. breath (blast) or a breeze; by analogy or figuratively, a spirit, i.e. (human) the rational soul, (by implication) vital principle, mental disposition, etc., or (superhuman) an angel, demon, or (divine) God, Christ's spirit, the Holy Spirit
KJV Usage:
ghost, life, spirit(-ual, -ually), mind. Compare 5590