register

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A formal or official recording of items, names, or actions.
• noun A book for such entries.
• noun An entry in such a record.
• noun The act of registering.
• noun A device that automatically records a quantity or number.
• noun Computers A part of the central processing unit used as a storage location.
• noun An adjustable, grill-like device through which heated or cooled air is released into a room.
• noun A state of proper alignment.
• noun Exact alignment of the lines and margins on the opposite sides of a leaf.
• noun Proper positioning of colors in color printing.
• noun The range of an instrument or a voice.
• noun A part of such a range.
• noun A group of matched organ pipes; a stop.
• noun A variety or level of language used in a specific social setting.
• intransitive verb To enter in an official register.
• intransitive verb To enroll officially or formally, especially in order to vote or attend classes.
• intransitive verb To set down in writing.
• intransitive verb To express or make known.
• intransitive verb To indicate (data). Used of an instrument or scale.
• intransitive verb To be indicated as.
• intransitive verb To give outward signs of; express.
• intransitive verb To attain or achieve.
• intransitive verb To cause (mail) to be officially recorded and specially handled by payment of a fee.
• intransitive verb To adjust so as to be properly aligned.
• intransitive verb To place or cause placement of one's name in a register.
• intransitive verb To have one's name officially placed on a list of eligible voters.
• intransitive verb To enroll as a student.
• intransitive verb To have a list of gifts for preferred wedding presents, as at a store. Used of a couple.
• intransitive verb To be indicated on an instrument or a scale.
• intransitive verb To be shown or expressed, as on the face.
• intransitive verb To make an impression; be recorded in the mind.
• intransitive verb To be in proper alignment.

from The Century Dictionary.

• noun One who registers: same as registrar.
• noun Specifically In law: An officer of a United States district court, formerly appointed under the United States bankruptcy act, for the purpose of assisting the judge in the performance of his duties under that act, by attending to matters of detail and routine, or purely administrative in their character.
• noun In some parts of the United States, an officer who receives and records deeds so as to give public notice thereof.
• To enter in a register; indicate by registering; record in any way.
• To mark or indicate on a register or scale.
• In rope-making, to twist, as yarns, into a strand.
• Synonyms See record.
• To enter one's name, or cause it to bo entered, in a register, as at a hotel, or in the registry of qualified voters.
• In printing, etc.: To correspond exactly in symmetry, as columns or lines of printed matter on opposite sides of a leaf, so that line shall fall upon line and column upon column.
• To correspond exactly in position, as in color-printing, so that every different color-impression shall fall exactly in its proper place, forming no double lines, and neither leaving blank spaces nor passing the limits proper to any other color.
• In organ-playing, same as registrate.
• noun A float or buoy attached to a submarine cable while it is being paid out, to diminish the tension on the cable and the liability to injury from that cause.