enlargement

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

• noun An act of enlarging or the state of being enlarged.
• noun Something that enlarges; an addition.
• noun Something that has been enlarged, especially a photographic reproduction or a copy larger than the original print or negative.

from The Century Dictionary.

• noun The act of increasing in size or bulk, real or apparent; the state of being increased; augmentation; dilatation; expansion: as, the enlargement of a field by the addition of two or three acres; enlargement of the heart.
• noun Something added on; an addition.
• noun Expansion or extension, as of powers and influence; an increase of capacity, scope, or comprehension, as of the sympathies and character.
• noun Release from captivity, bondage, distress, or the like; a setting at large or at liberty.
• noun The state or condition of being at large or unrestrained.
• noun Diffuseness of speech or writing; expatiation on a particular subject; extended discourse or argument.
• noun In the calculus of finite differences, the operation of changing a function by adding unity to the variable. It is denoted by the letter E. Thus, E log x = log (x + 1).
• noun In photography, a picture of any kind, especially a positive, made of a larger size than the negative from which it is taken. See solar printing, under printing.

from the GNU version of the Collaborative International Dictionary of English.

• noun The act of increasing in size or bulk, real or apparent; the state of being increased; augmentation; further extension; expansion.
• noun Expansion or extension, as of the powers of the mind; ennoblement, as of the feelings and character.
• noun A setting at large, or being set at large; release from confinement, servitude, or distress; liberty.
• noun Diffusiveness of speech or writing; expatiation; a wide range of discourse or argument.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The act of making something larger.
• noun figuratively A making more obvious or serious; exacerbation.
• noun An image, particularly a photograph, that has been enlarged.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the state of being enlarged
• noun the act of increasing (something) in size or volume or quantity or scope
• noun a discussion that provides additional information
• noun a photographic print that has been enlarged