The act of sanctifying or making holy; the state of being sanctified or made holy;
the act of God's grace by which the affections of men are purified, or alienated from sin and the world, and exalted to a supreme love to God; also, the state of being thus purified or sanctified.
The act of consecrating, or of setting apart for a sacred purpose; consecration.
The process of conforming to God's will in our thoughts, words, and deeds. This process is a result of the Holy Spirit (see trinity) working in our heart.
Making something or someone holy, pure, able to approach God.
the ongoing process of God's grace; being continually separated from sin, being dedicated to God's righteousness and changed into the image of Christ.
a religious ceremony in which something is made holy
Purification or the making holy
similar in meaning to “holy” or “set apart.” It is the process whereby Christians are made holy through Christ's death, and continue to grow into and strive for holiness by cooperating with the indwelling of the Holy Spirit until they enjoy complete conformity to Christ (in heaven).
A theological term which derives from the Latin sanctus, "holy." By extension it thus refers to all those who, in Christ, participate in the holiness of God through baptism.
Literally, "being set apart" to God. The process of growth in Christ whereby the believer is made holy as God is holy, through the Holy Spirit (see article, "Deification," at 2 Pet. 1; Rom. 6:22 with center-column note; Rom. 15:16). See also DEIFICATION, JUSTIFICATION and SALVATION.
I like this definition from Thomas Watson's Sanctification. "It is a principle of grace savingly wrought, whereby the heart becomes holy, and is made after God's own heart. A sanctified person bears not only God's name, but his image." Also see Concise Theology chapter.
According to Wesleyan doctrine, a second (after being born again), definite, instantaneous work of grace which removes the inbred carnal nature through an act of the Holy Spirit, thereby making it less likely for the believer to sin again.
Sanctification or in its verb form, sanctify,literally means to set apart for special use or purpose, that is to make holy or sacred (compare Latin sanctus 'holy'). The Greek word is hagiasmos (άγιασμος), meaning "holiness, consecration, or sanctification" (Verbrugge 9). It comes from the root hagios (άγιος), which means holy or sacred.