Charles Buck Theological Dictionary 
A place of worship.
There are various kinds of chapels in Britain.
1. Domestic chapels, built by noblemen or gentlemen for private worship in their families.
2. Free chapels, such as are founded by kings of England. They are free from all episcopal jurisdiction, and only to be visited by the founder and his successors, which is done by the lord chancellor: yet the king may license any subject to build and endow a chapel, and by letters patent exempt it from the visitation of the ordinary.
3. Chapels in universities belonging to particular universities.
4. Chapels of ease, built for the ease of one or more parishioners that dwell too far from the church, and are served by inferior curates, provided for at the charge of the rector, or of such as have benefit by it, as the composition or custom is.
5. Parochial chapels, which differ from parish churches only in name: they are generally small, and the inhabitants within the district few. If there be a presentation ad ecclesiam instead of capellam, and an admission and institution upon it, it is no longer a chapel, but a church for themselves and families.
6. Chapels which adjoin to and are part of the church: such were formerly built by honourable persons as burying places.
7. The places of worship belonging to the Calvinistic and Arminian Methodists are also generally called chapels, though they are licensed in no other way than the meetings of the Protestant Dissenters.
Webster's Dictionary 
(1): (n.) A subordinate place of worship
(2): (n.) a room or recess in a church, containing an altar.
(3): (v. t.) To cause (a ship taken aback in a light breeze) so to turn or make a circuit as to recover, without bracing the yards, the same tack on which she had been sailing.
(4): (v. t.) To deposit or inter in a chapel; to enshrine.
(5): (n.) a small building attached to a church
(6): (n.) An association of workmen in a printing office.
(7): (n.) A printing office, said to be so called because printing was first carried on in England in a chapel near Westminster Abbey.
(8): (n.) A choir of singers, or an orchestra, attached to the court of a prince or nobleman.
(9): (n.) In England, a place of worship used by dissenters from the Established Church; a meetinghouse.
(10): (n.) A place of worship not connected with a church; as, the chapel of a palace, hospital, or prison.
(11): (n.) a small church, often a private foundation, as for a memorial
King James Dictionary 
1. A house for public worship primarily, a private oratory, or house of worship belonging to a private person. In Great Britain there are several sorts of chapels as parochial chapels, distinct from the mother church chapels which adjoin to and are a part of the church such were formerly built by honorable persons for burying places chapels of ease, built in large parishes for the accommodation of the inhabitants free chapels, which were founded by the kings of England chapels in the universities, belonging to particular colleges domestic chapels, built by noblemen or gentlemen for the use of their families. 2. A printers workhouse said to be so called because printing was first carried on in a chapel.
CHAPEL, To deposit in a chapel.
Morrish Bible Dictionary 
Sanctuary, Amos 7:13 , as miqdash is often translated elsewhere.
Easton's Bible Dictionary 
Cyclopedia of Biblical, Theological and Ecclesiastical Literature 
( מַקְדָּשׁ , Mikdash ´ , Holy place), a general name for a Sanctuary (as it is elsewhere rendered) or place of worship, occurs in Amos 7:13, where Bethel is called "the king's chapel" by one of the idol priests, because there the kings of Israel paid idolatrous worship to the golden calves. In 1 Maccabees 1:47, the Greek word is Εἰδωλεῖον , and in 2 Maccabees 10:2; 2 Maccabees 11:3, Τέμενος ; both used in a similar sense.
(Lat. capella, a little cloak or hood). The kings of France are said to have preserved a piece of the cloak of St. Martin in a little church, and to have taken it with them to the field of battle. The tent or church containing this capella hence received its name. The term was afterward applied to all small churches, and especially to the side rooms or chapels added to the side aisles of a church, and which were separately dedicated, usually to the service of some saint. Before the Reformation nearly all castles, manor- houses, courthouses, and religious or charitable establishments had such chapels. These had not the right of sepulture, nor of sacramental services.
The term chapel was also sometimes applied to the sets of vessels or the vestments necessary for the celebration of the church services. It is also sometimes applied to a choir of singers; also to a printer's workhouse, or a body of printers, because printing in England was first carried on in a chapel of Westminster Abbey.
In England the word is now used to denote,
1. Domestic chapels, built by noblemen for private worship in their families;
2. College chapels, attached to colleges;
3. Chapels of ease, built for the use of parishioners who live at too great a distance from the parish church;
4. Parochial chapels, which differ from chapels of ease on account of their having a permanent minister or incumbent, though they are in some degree dependent upon the mother church;
5. Free chapels, such as were founded by kings of England, and made exempt from episcopal jurisdiction;
6. Chapels which adjoin to any part of the church; such were formerly built by persons of consideration as burial-places. In the great Roman cathedrals and churches of Europe side-chapels are commonly fitted up for prayer, with an altar and the other necessary appendages.
The Methodists and Disseinters in England call their churches chapels, and this erroneous use of the word has crept somewhat into use in America.
Chapels may be divided into several classes:
International Standard Bible Encyclopedia 
chap´el ( מקדּשׁ , miḳdāsh , "a holy place"; the Revised Version (British and American) Sanctuary , which see): "It is the king's chapel" ( Amos 7:13 the King James Version), an expression indicative of the dependence of this sanctuary on the court.
- ↑ Chapel from Charles Buck Theological Dictionary
- ↑ Chapel from Webster's Dictionary
- ↑ Chapel from King James Dictionary
- ↑ Chapel from Morrish Bible Dictionary
- ↑ Chapel from Easton's Bible Dictionary
- ↑ Chapel from Cyclopedia of Biblical, Theological and Ecclesiastical Literature
- ↑ Chapel from International Standard Bible Encyclopedia