band, beginning, captain, chapiter, chief(-est place, man, things), company, end, X every (man), excellent, first, forefront, ((be-))head, height, (on) high(-est part, (priest)), X lead, X poor, principal, ruler, sum, top

Boyd’s Bible Dictionary:

(head). Title for a leader of a band of ten, fifty, hundred or thousand (Deut. 1:15; Josh. 10:24; Judg. 11:6,11). Also a civic meaning (Isa. 1:10; 3:3). “Captain of the Guard” (Acts 28:16), was commander of the Praetorian troop of Rome. “Captain of the Temple” (Acts 4:1), was chief of the Temple watchmen.

“Captain” From Concise Bible Dictionary:

In the Old Testament this word is used for one filling any office of rule or command: as the head of a tribe (Num. 2:3-29); commander of an army, and so forth. The person who appeared to Joshua as “a man” declared himself to be “captain of the Lord’s host.” He told Joshua to remove his shoes from his feet, for the ground was holy, evincing that he was God’s representative to lead their warfare (Josh. 5:14-15). In the New Testament the Lord is called “Captain” of our salvation, ἀρχηγός, “chief leader” (Heb. 2:10).
There was also a “CAPTAIN OF THE TEMPLE,” στρατηγός (Luke 22:4, 52; Acts 4:1; Acts 5:24, 26). This word is literally “the leader of an army”; it is also applied to magistrates (Acts 16:20), but the captain of the temple was set not over the soldiers, but over the priests and Levites: (Compare Num. 32; 1 Chron. 9:11; Jer. 20:1).
THE CHIEF CAPTAIN or HIGH CAPTAIN is χιλίαρχος, lit. “Captain of a thousand,” applied to the chief of the soldiers in Jerusalem (Acts 21-25).
CAPTAIN OF THE GUARD (Acts 28:16), is στρατοπεδάρχης, properly “commander of a camp,” but here the prefect of the Prætorian Guard, an officer to whom state prisoners were entrusted at Rome.

“Head” From Concise Bible Dictionary:

Besides the common use of this as “chief,” referring to the heads of families and heads of tribes, the word was used symbolically of government and power, as when God declared that the Seed of the woman should bruise the serpent’s “head” (Gen. 3:15). In the New Testament the term κεφαλή is employed for the relative position of man in nature, and of Christ and of God: the head of the woman is the man; the head of every man is Christ; and the head of Christ is God (1 Cor. 11:3). In another connection Christ is the head of the church (Eph. 5:23; Col. 1:18); and He is head over all things to the church (Eph. 1:22; Col. 2:10). As head of the church Christ removes entirely every other controlling or guiding authority. As the head of a man guides and controls his body, so Christ has the complete control over His church.
In Revelation 12:3 the “head” symbolizes a form of power or kingdom; and in Revelation 17:3,9, the seven heads are seven mountains on which the woman sitteth, representing Rome, which was commonly described as built upon seven hills, and the woman signifies Papal Rome.

Strong’s Dictionary of Hebrew Words:

Transliteration:
ro’sh
Phonic:
roshe
Meaning:
from an unused root apparently meaning to shake; the head (as most easily shaken), whether literal or figurative (in many applications, of place, time, rank, itc.)
KJV Usage:
band, beginning, captain, chapiter, chief(-est place, man, things), company, end, X every (man), excellent, first, forefront, ((be-))head, height, (on) high(-est part, (priest)), X lead, X poor, principal, ruler, sum, top