Definition:

1. Psalm 119:120 "My flesh trembles in fear of you; I stand in awe of your laws." This verse sums up a good understanding of the fear of the Lord. Notice that my flesh trembles in fear of God, and rightly it should, since the presence of the Lord is the death of the fleshly nature, though it is a gradual death that comes with each obedience to the Holy Spirit. My inner man, the Christ in me, the real me, stands in holy awe of God. The Christ in me, the real me, is not trembling in fear of God but standing in awe. The natural, fallen, man is certainly in morbid fear of God.
2. Fear of God is a combination of awe, fear that one may have in the presence of an angel, deep reverence, honor, and respect.
3. In the Bible, the word, fear, can also mean a destructive fear, as of the fear of men or events. This is the kind of fear that love casts out and the kind of fear that is a snare.

Strong's Definitions:

01481 guwr goor
abide, stand in awe and dread, excite oneself abide, stand in awe and dread, excite oneself
a primitive root; v; {See TWOT on 330} {See TWOT on 332}
AV-sojourn 58, dwell 12, afraid 6, stranger 6, gather together 4, fear 3, abide 2, assemble 1, stand in awe 1, gathered 1, inhabitant 1, remain 1, sojourners 1, surely 1; 98
1) to sojourn, abide, dwell in, dwell with, remain, inhabit, be a stranger, be continuing, surely
1a) (Qal)
1a1) to sojourn, dwell for a time
1a2) to abide, stay, temporarily dwell
1b) (Hithpolel)
1b1) to seek hospitality with
1b2) to assemble oneself
2) to stir up trouble, strife, quarrel, gather together
2a) (Qal)
2a1) to stir up strife
2a2) to quarrel
2b) (Hithpolel) to excite oneself
3) to dread, fear, stand in awe, be afraid
3a) (Qal)
3a1) to fear, be afraid
3a2) to be in awe, stand in awe

01674  d@'agah deh-aw-gaw'
anxiety, worry, care, heaviness over possible future events. Never used to admonish us to fear God.
from 01672; n f; {See TWOT on 393 @@ "393a"}
AV-carefulness 2, fear 1, heaviness 1, sorrow 1, with care 1; 6
1) anxiety, anxious care, care

01763  dechal (Aramaic) deh-khal'
human fear--dechal is never used to admonish us to fear God
corresponding to 02119; v; {See TWOT on 2672}
AV-fear 2, dreadful 2, terrible 1, afraid 1; 6
1) to fear
1a) (P'al)
1a1) to fear
1a2) terrible (pass participle)
1b) (Pael) to cause to be afraid, make afraid

02342  chuwl khool or ליח chiyl kheel
pain, sorrow, writhe, dance, and fear of pain or punishment
a primitive root; v; {See TWOT on 623}
AV-pain 6, formed 5, bring forth 4, pained 4, tremble 4, travail 4, dance 2, calve 2, grieved 2, grievous 2, wounded 2, shake 2, misc 23; 62
1) to twist, whirl, dance, writhe, fear, tremble, travail, be in anguish, be pained
1a) (Qal)
1a1) to dance
1a2) to twist, writhe
1a3) to whirl, whirl about
1b) (Polel)
1b1) to dance
1b2) to writhe (in travail with), bear, bring forth
1b3) to wait anxiously
1c) (Pulal)
1c1) to be made to writhe, be made to bear
1c2) to be brought forth
1d) (Hophal) to be born
1e) (Hithpolel)
1e1) whirling (participle)
1e2) writhing, suffering torture (participle)
1e3) to wait longingly
1f) (Hithpalpel) to be distressed

02731  charadah khar-aw-daw'
from 02730; n f; {See TWOT on 735 @@ "735b"}
AV-trembling 4, fear 2, exceedingly 1, care 1, quaking 1; 9
1) fear, anxiety, quaking, trembling, (extreme) anxiety, anxious care
1a) trembling, quaking
1b) anxious care

02844  chath khath
never used as the fear of God.
from 02865; n m; {See TWOT on 784 @@ "784a"}
AV-dread 1, broken 1, fear 1, dismayed 1; 4
1) fear, terror
2) shattered, dismayed
2a) shattered
2b) dismayed

03025  yagor yaw-gore'
a primitive root; v; {See TWOT on 843}
AV-afraid 4, fear 1; 5
1) (Qal) to fear, dread, be afraid

03372  yare' yaw-ray'
a primitive root; v; {See TWOT on 907} {See TWOT on 908}
AV-fear 188, afraid 78, terrible 23, terrible thing 6, dreadful 5, reverence 3, fearful 2, terrible acts 1, misc 8; 314
1) to fear, revere, be afraid
1a) (Qal)
1a1) to fear, be afraid
1a2) to stand in awe of, be awed
1a3) to fear, reverence, honour, respect
1b) (Niphal)
1b1) to be fearful, be dreadful, be feared
1b2) to cause astonishment and awe, be held in awe
1b3) to inspire reverence or godly fear or awe
1c) (Piel) to make afraid, terrify
2) (TWOT) to shoot, pour

03374  yir'ah yir-aw'
from 03373; n f; {See TWOT on 907 @@ "907b"}
AV-fear 41, exceedingly + 01419 2, dreadful 1, fearfulness 1; 45
1) fear, terror, fearing
1a) fear, terror
1b) awesome or terrifying thing (object causing fear)
1c) fear (of God), respect, reverence, piety
1d) revered

04032  magowr maw-gore' or (#La 2:22) רוגמ maguwr maw-goor'
from 01481 in the sense of fearing; n m; {See TWOT on 332 @@ "332a"}
AV-fear 6, terror 2; 8
1) fear, terror

04172  mowra' mo-raw' or ארמ mora' mo-raw' or הרומ morah (#Ps 9:20) mo-raw'
from 03372; n m; {See TWOT on 907 @@ "907c"} {See TWOT on 907 @@ "907d"}
AV-fear 8, terror 3, dread 1, terribleness 1; 13
1) fear, reverence, terror
1a) fear, terror
1b) reverence
1c) object of reverence
1d) awe-inspiring spectacle or deed

06206  'arats aw-rats'

examples:
fear of others: be not afraid
fear with reverence: God is greatly to be feared in the assembly of the saints, and to be had in reverence of all them that are about him.
speaking of the wicked: for fear of the LORD, and for the glory of his majesty, when he ariseth to shake terribly the earth.
fear with total dedication to God: Sanctify the LORD of hosts himself; and let him be your fear [lit. object of reverence ], and let him be your dread .

a primitive root; v; {See TWOT on 1702}
AV-afraid 3, fear 3, dread 2, terribly 2, break 1, affrighted 1, oppress 1, prevail 1, terrified 1; 15
1) to tremble, dread, fear, oppress, prevail, break, be terrified, cause to tremble
1a) (Qal)
1a1) to cause to tremble, terrify
1b2) to tremble, feel dread
1b) (Niphal) to be awesome, be terrible
1c) (Hiphil)
1c1) to regard or treat with awe, regard or treat as awful
1c2) to inspire with awe, terrify

06342 pachad paw-kkad'
a primitive root; v; {See TWOT on 1756}
AV-fear 14, afraid 9, awe 1, shake 1; 25
1) to fear, tremble, revere, dread, be in awe or dread
1a) (Qal)
1a1) to be in dread
1a2) to be in awe
1b) (Piel) to be in great dread
1c) (Hiphil) to cause to dread

06343 pachad pakh'- ad
from 06342; n m; {See TWOT on 1756 @@ "1756a"}
AV-fear 40, dread 3, great 2, terror 2, dreadful 1, greatly 1; 49
1) terror, dread
1a) dread
1b) object of dread

1) anxiety, anxious care, carefrom 06437; n m; {See TWOT on 1782 @@ "1782a"}
AV-before 1137, face 390, presence 76, because 67, sight 40, countenance 30, from 27, person 21, upon 20, of 20, ... me 18, against 17, ... him 16, open 13, for 13, toward 9, misc 195; 2109
1) face
1a) face, faces
1b) presence, person
1c) face (of seraphim or cherubim)
1d) face (of animals)
1e) face, surface (of ground)
1f) as adv of loc/temp
1f1) before and behind, toward, in front of, forward, formerly, from beforetime, before
1g) with prep
1g1) in front of, before, to the front of, in the presence of, in the face of, at the face or front of, from the presence of, from before, from before the face of

06440 paniym paw-neem' pl. (but always as sing.) of an unused noun הנפ paneh paw-neh'
from 06437; n m; {See TWOT on 1782 @@ "1782a"}
AV-before 1137, face 390, presence 76, because 67, sight 40, countenance 30, from 27, person 21, upon 20, of 20, ... me 18, against 17, ... him 16, open 13, for 13, toward 9, misc 195; 2109
1) face
1a) face, faces
1b) presence, person
1c) face (of seraphim or cherubim)
1d) face (of animals)
1e) face, surface (of ground)
1f) as adv of loc/temp
1f1) before and behind, toward, in front of, forward, formerly, from beforetime, before
1g) with prep
1g1) in front of, before, to the front of, in the presence of, in the face of, at the face or front of, from the presence of, from before, from before the face of

07267 rogez ro'- ghez
from 07264; n m; {See TWOT on 2112 @@ "2112a"}
AV-trouble 2, troubling 1, noise 1, rage 1, fear 1, wrath 1; 7
1) agitation, excitement, raging, trouble, turmoil, trembling
1a) turmoil, disquiet, raging
1b) trembling, trepidation

0367 'eymah ay-maw' or המא (shortened) 'emah ay-maw'
dread and fear - this word is never used to admonish us to fear God.
from the same as 0366; n f; {See TWOT on 80 @@ "80b"}
AV-terror( s) 7, fear 5, terrible 2, dread 1, horror 1, idols 1; 17
1) terror, dread

5399 phobeo fob-eh'-o
from 5401; TDNT-9:189,1272; v
AV-fear 62, be afraid 23, be afraid of 5, reverence 1, misc 2; 93
1) to put to flight by terrifying (to scare away)
1a) to put to flight, to flee
1b) to fear, be afraid
1b1) to be struck with fear, to be seized with alarm
1b1a) of those startled by strange sights or occurrences
1b1b) of those struck with amazement
1b2) to fear, be afraid of one
1b3) to fear (i.e. hesitate) to do something (for fear of harm)
1c) to reverence, venerate, to treat with deference or reverential obedience

5401 phobos fob'-os
from a primary phebomai (to be put in fear); TDNT-9:189,1272; n m
AV-fear 41, terror 3, misc 3; 47
1) fear, dread, terror
1a) that which strikes terror
2) reverence for one's husband

870 aphobos af-ob'-oce

Never used as the fear of God.

from a compound of 1 (as a negative particle) and 5401;; adv
AV-without fear 4; 4
1) without fear, boldly

2125 eulabeomai yoo-lab-eh'-om-ahee
middle voice from 2126; TDNT-2:751,*; v
AV-fearing 1, moved with fear 1; 2
1) to act cautiously, circumspectly
2) to beware, fear
3) to reverence, stand in awe of