collateral

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

• adjective Situated or running side by side; parallel.
• adjective Coinciding in tendency or effect; concomitant or accompanying.
• adjective Serving to support or corroborate.
• adjective Of a secondary nature; subordinate.
• adjective Of, relating to, or guaranteed by a security pledged against the performance of an obligation.
• adjective Having an ancestor in common but descended from a different line.
• noun Property acceptable as security for a loan or other obligation.
• noun A collateral relative.

from The Century Dictionary.

• Situated at the side: belonging to the side or to what is at the side; hence, occupying a secondary or subordinate position.
• Acting indirectly; acting through side channels.
• Accompanying; attendant, especially as an auxiliary; aiding, strengthening, confirming, etc., in a secondary or subordinate way: as, collateral aid; collateral security (see below); collateral evidence.
• Descending from the same stock or ancestor (commonly male) as another, but in a different line: distinguished from lineal.
• In botany, standing side by side: as, collateral ovules.
• In geometry, having a common edge, as two adjoining faces of a polyhedron.
• noun A kinsman or relative descended from a common ancestor, but not in direct line.
• noun Anything of value, or representing value, as bonds, deeds, etc., pledged as security in addition to a direct obligation.

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

• noun A collateral relative.
• noun Collateral security; that which is pledged or deposited as collateral security.
• adjective Coming from, being on, or directed toward, the side.
• adjective Acting in an indirect way.
• adjective Related to, but not strictly a part of, the main thing or matter under consideration; hence, subordinate; not chief or principal.
• adjective Tending toward the same conclusion or result as something else; additional.
• adjective (Genealogy) Descending from the same stock or ancestor, but not in the same line or branch or one from the other; -- opposed to lineal.
• adjective that which is made, over and above the deed itself.
• adjective (Med. & Physiol.) circulation established through indirect or subordinate branches when the supply through the main vessel is obstructed.
• adjective (Law) A point raised, on cross-examination, aside from the issue fixed by the pleadings, as to which the answer of the witness, when given, cannot subsequently be contradicted by the party asking the question.
• adjective security for the performance of covenants, or the payment of money, besides the principal security.
• adjective (Mil.) damage caused by a military operation, such as a bombing, to objects or persons not themselves the intended target of the attack.

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

• adjective parallel, along the same vein, side by side.
• adjective Corresponding; accompanying, concomitant.
• adjective being aside from the main subject; tangential, subordinate, ancillary.
• adjective family of an indirect ancestral relationship, as opposed to lineal descendency.
• adjective relating to a collateral in the sense of an obligation or security
• adjective expensive to the extent of being paid through a loan
• noun A security or guarantee (usually an asset) pledged for the repayment of a loan if one cannot procure enough funds to repay. (Originally supplied as "accompanying" security.)
• noun A collateral (not linear) family member.
• noun A branch of a bodily part or system of organs

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

• adjective accompany, concomitant
• adjective situated or running side by side
• adjective descended from a common ancestor but through different lines
• adjective serving to support or corroborate
• noun a security pledged for the repayment of a loan