πνεῦμα
pneûma · noun · “spirit, breath”
Pneuma means breath, wind, or spirit — used for the human spirit and, supremely, the Holy Spirit, God’s own presence and power at work in his people.
Like the Hebrew ruach, pneuma evokes wind and breath — unseen but powerful. Jesus uses exactly that image with Nicodemus: the Spirit, like wind, “blows where it wishes.” The word covers the human inner life and the third person of the Trinity.
The Holy Spirit (pneuma hagion) indwells believers, gives new birth, produces Christlike fruit, and empowers witness. To live “by the Spirit” is to be carried by God’s own breath rather than by mere human effort.
Definition: 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
Reference gloss from Strong's Concordance (1890, public domain).
Original BibleDawn word study. Original-language data and the public-domain Strong's (1890) gloss are referenced; see sources.