Some Definitions

Easton's Bible Dictionary:

This word is used of the deliverance of the Israelites from the Egyptians ( Exodus 14:13), and of deliverance generally from evil or danger. In the New Testament it is specially used with reference to the great deliverance from the guilt and the pollution of sin wrought out by Jesus Christ, "the great salvation" ( Hebrews 2:3). (See REDEMPTION; REGENERATION .)

Easton's Bible Dictionary is in the public domain. You may freely copy the above text from Easton's.

Vine's Bible Dictionary:

Noun     Strong's Number: 4991     Greek: soteria

denotes "deliverance, preservation, salvation." "Salvation" is used in the NT (a) of material and temporal deliverance from danger and apprehension, (1) national, Luke 1:69,71; Acts 7:25, RV marg., "salvation" (text, "deliverance"); (2) personal, as from the sea, Acts 27:34; RV, "safety" (AV, "health"); prison, Phil. 1:19; the flood, Heb. 11:7; (b) of the spiritual and eternal deliverance granted immediately by God to those who accept His conditions of repentance and faith in the Lord Jesus, in whom alone it is to be obtained, Acts 4:12, and upon confession of Him as Lord, Rom. 10:10; for this purpose the gospel is the saving instrument, Rom. 1:16; Eph. 1:13 (see further under SAVE); (c) of the present experience of God's power to deliver from the bondage of sin, e.g., Phil. 2:12, where the special, though not the entire, reference is to the maintenance of peace and harmony; 1 Pet. 1:9; this present experience on the part of believers is virtually equivalent to sanctification; for this purpose, God is able to make them wise, 2 Tim. 3:15; they are not to neglect it, Heb. 2:3; (d) of the future deliverance of believers at the Parousia of Christ for His saints, a salvation which is the object of their confident hope, e.g., Rom. 13:11; 1 Thess. 5:8, and 1 Thess. 5:9, where "salvation" is assured to them, as being deliverance from the wrath of God destined to be executed upon the ungodly at the end of this age (see 1 Thess. 1:10); 2 Thess. 2:13; Heb. 1:14; 9:28; 1 Pet. 1:5; 2 Pet. 3:15; (e) of the deliverance of the nation of Israel at the second advent of Christ at the time of "the epiphany (or shining forth) of His Parousia" (2 Thess. 2:8); Luke 1:71; Rev. 12:10; (f) inclusively, to sum up all the blessings bestowed by God on men in Christ through the Holy Spirit, e.g., 2 Cor. 6:2; Heb. 5:9; 1 Pet. 1:9,10; Jude 1:3; (g) occasionally, as standing virtually for the Savior, e.g., Luke 19:9; cp. John 4:22 (see SAVIOR); (h) in ascriptions of praise to God, Rev. 7:10, and as that which it is His prerogative to bestow, Rev. 19:1 (RV).

Noun     Strong's Number: 4992     Greek: soterion

the neuter of the adjective (see B), is used as a noun in Luke 2:30; 3:6, in each of which it virtually stands for the Savior, as in No. 1 (g); in Acts 28:28, as in No. 1 (b); in Eph. 6:17, where the hope of "salvation" [see No. 1 (d)] is metaphorically described as "a helmet."

Adjective     Strong's Number: 4992     Greek: soterios

"saving, bringing salvation," describes the grace of God, in Titus 2:11

Vine's Bible Dictionary is in the public domain. You may freely copy the above text from Vine's.