Easton's Bible Dictionary
Found in Judges 21:21, 23; Psalm 30:11; 149:3; 150:4; Jeremiah 31:4, 13, etc., as the translation of hul, which points to the whirling motion of Oriental sacred dances. It is the rendering of a word (rakad') which means to skip or leap for joy, in Ecclesiastes 3:4; Job 21:11; Isaiah 13:21, etc.
In the New Testament it is in like manner the translation of different Greek words, circular motion (Luke 15:25); leaping up and down in concert (Matthew 11:17), and by a single person (Matthew 14:6).
It is spoken of as symbolical of rejoicing (Ecclesiastes 3:4. Comp. Psalm 30:11; Matthew 11:17). The Hebrews had their sacred dances expressive of joy and thanksgiving, when the performers were usually females (Exodus 15:20; 1 Samuel 18:6).
The ancient dance was very different from that common among Western nations. It was usually the part of the women only (Exodus 15:20; Judges 11:34; Comp. 5:1). Hence the peculiarity of David's conduct in dancing before the ark of the Lord (2 Samuel 6:14). The women took part in it with their timbrels. Michal should, in accordance with the example of Miriam and others, have herself led the female choir, instead of keeping aloof on the occasion and "looking through the window." David led the choir "uncovered", i.e., wearing only the ephod or linen tunic. He thought only of the honour of God, and forgot himself.
From being reserved for occasions of religious worship and festivity, it came gradually to be practised in common life on occasions of rejoicing (Jeremiah 31:4). The sexes among the Jews always danced separately. The daughter of Herodias danced alone (Matthew 14:6).
Noah Webster's New International Dictionary of the English Language
1. (v. i.) To move with measured steps, or to a musical accompaniment; to go through, either alone or in company with others, with a regulated succession of movements, (commonly) to the sound of music; to trip or leap rhythmically.
2. (v. i.) To move nimbly or merrily; to express pleasure by motion; to caper; to frisk; to skip about.
3. (v. t.) To cause to dance, or move nimbly or merrily about, or up and down; to dandle.
4. (n.) The leaping, tripping, or measured stepping of one who dances; an amusement, in which the movements of the persons are regulated by art, in figures and in accord with music.
5. (n.) A tune by which dancing is regulated, as the minuet, the waltz, the cotillon, etc.