Webster's Dictionary 
(1): ( v. i.) To correspond in relative position; as, two pages, columns, etc. , register when the corresponding parts fall in the same line, or when line falls exactly upon line in reverse pages, or (as in chromatic printing) where the various colors of the design are printed consecutively, and perfect adjustment of parts is necessary.
(2): ( n.) The correspondence of pages, columns, or lines on the opposite or reverse sides of the sheet.
(3): ( n.) A lid, stopper, or sliding plate, in a furnace, stove, etc., for regulating the admission of air to the fuel; also, an arrangement containing dampers or shutters, as in the floor or wall of a room or passage, or in a chimney, for admitting or excluding heated air, or for regulating ventilation.
(4): ( v. i.) To enroll one's name in a register.
(5): ( n.) A written account or entry; an official or formal enumeration, description, or record; a memorial record; a list or roll; a schedule.
(6): ( n.) A machine for registering automatically the number of persons passing through a gateway, fares taken, etc.; a telltale.
(7): ( v. i.) A stop or set of pipes in an organ.
(8): ( n.) The part of a telegraphic apparatus which records automatically the message received.
(9): ( v. i.) The compass of a voice or instrument; a specified portion of the compass of a voice, or a series of vocal tones of a given compass; as, the upper, middle, or lower register; the soprano register; the tenor register.
(10): ( n.) The correspondence or adjustment of the several impressions in a design which is printed in parts, as in chromolithographic printing, or in the manufacture of paper hangings. See Register, v. i. 2.
(11): ( n.) A record containing a list and description of the merchant vessels belonging to a port or customs district.
(12): ( n.) One who registers or records; a registrar; a recorder; especially, a public officer charged with the duty of recording certain transactions or events; as, a register of deeds.
(13): ( n.) To enter in a register; to record formally and distinctly, as for future use or service.
(14): ( n.) A certificate issued by the collector of customs of a port or district to the owner of a vessel, containing the description of a vessel, its name, ownership, and other material facts. It is kept on board the vessel, to be used as an evidence of nationality or as a muniment of title.
(15): ( n.) To enroll; to enter in a list.
(16): ( n.) That which registers or records.
(17): ( n.) A contrivance for automatically noting the performance of a machine or the rapidity of a process.
(18): ( n.) The inner part of the mold in which types are cast.
(19): ( v. t.) To enter the name of the owner of (a share of stock, a bond, or other security) in a register, or record book. A registered security is transferable only on the written assignment of the owner of record and on surrender of his bond, stock certificate, or the like.
King James Dictionary 
REG'ISTER, n. Low L. registrum, from regero, to set down in writing re and gero, to carry.
1. A written account or entry of acts, judgments or proceedings, for preserving and conveying to future times an exact knowledge of transactions. The word appropriately denotes an official account of the proceedings of a public body, a prince, a legislature, a court an incorporated company and the like, and in this use it is synonymous with record. But in a lax sense, it signifies any account entered on paper to preserve the remembrance of what is done. 2. The book in which a register or record is kept, as a parish register also, a list, as the register of seamen. 3. Low L. registrarius. The officer or person whose business is to write or enter in a book accounts of transactions, particularly of the acts and proceedings of courts or other public bodies as the register of a court of probate a register of deeds. 4. In chimistry and the arts, an aperture with a lid, stopper or sliding plate, in a furnace.
stove, &c. for regulating the admission of air and the heat of the fire.
5. The inner part of the mold in which types are cast. 6. In printing, the correspondence of columns on the opposite sides of the sheet. 7. A sliding piece of wood, used as a stop in an organ.
Parish register, a book in which are recorded the baptisms of children and the marriages and burials of the parish.
Register ship, a ship which obtains permission to trade to the Spanish West Indies and is registered before sailing.
1. To record to write in a book for preserving an exact account of facts and proceedings. The Greeks and Romans registered the names of all children born. 2. To enroll to enter in a list.
Holman Bible Dictionary 
Ezra 2:62 Nehemiah 7:5 7:64 Numbers 1:18 Numbers 11:26 2 Samuel 24:4 Nehemiah 12:22-23 Psalm 87:6Census
Hastings' Dictionary of the Bible 
REGISTER ( i.e. genealogical record). See Genealogy, 2 .