Complement and Interchange

complement

A word or phrase used to complete a grammatical construction.
A complete number or quantity.
- usage: "a full complement"
Number needed to make up a whole force.
- usage: "a full complement of workers"
- synonyms: full complement
Something added to complete or embellish or make perfect.
- usage: "a fine wine is a perfect complement to the dinner"; "wild rice was served as an accompaniment to the main dish"
- synonyms: accompaniment
One of a series of enzymes in the blood serum that are part of the immune response.
Either of two parts that mutually complete each other.

Make complete or perfect; supply what is wanting or form the complement to.
- usage: "I need some pepper to complement the sweet touch in the soup"

(v.t.) To supply a lack; to supplement.
(v.t.) The whole working force of a vessel.
(v.t.) Something added for ornamentation; an accessory.
(v.t.) To compliment.
(v.t.) A second quantity added to a given quantity to make it equal to a third given quantity.
(v.t.) A compliment.
(v.t.) Full quantity, number or amount; a complete set; completeness.
(v.t.) The interval wanting to complete the octave; -- the fourth is the complement of the fifth, the sixth of the third.
(v.t.) That which fills up or completes; the quantity or number required to fill a thing or make it complete.
(v.t.) That which is required to supply a deficiency or to complete a symmetrical whole.

Webster's Revised Unabridged Dictionary

interchange

A junction of highways on different levels that permits traffic to move from one to another without crossing traffic streams.
Mutual interaction; the activity of reciprocating or exchanging (especially information.
- synonyms: reciprocation, give-and-take
The act of changing one thing for another thing.
- usage: "Adam was promised immortality in exchange for his disobedience"; "there was an interchange of prisoners"
- synonyms: exchange
Reciprocal transfer of equivalent sums of money (especially the currencies of different countries. )
- usage: "he earns his living from the interchange of currency"
- synonyms: exchange

Put in the place of another; switch seemingly equivalent items.
- usage: "the con artist replaced the original with a fake Rembrandt"; "substitute regular milk with fat-free milk"; "synonyms can be interchanged without a changing the context's meaning"
- synonyms: substitute, replace, exchange
Give to, and receive from, one another.
- usage: "Would you change places with me"; "We have been exchanging letters for a year"
- synonyms: exchange, change
Cause to change places.
- usage: "interchange this screw for one of a smaller size"
- synonyms: counterchange, transpose
Reverse (a direction, attitude, or course of action. ).
- synonyms: tack, switch, alternate, flip, flip-flop

(n.) The act of mutually changing; the act of mutually giving and receiving; exchange; as, the interchange of civilities between two persons.
(n.) Alternate succession; alternation; a mingling.
(v.t.) To cause to follow alternately; to intermingle; to vary; as, to interchange cares with pleasures.
(n.) The mutual exchange of commodities between two persons or countries; barter; commerce.
(v.i.) To make an interchange; to alternate.
(v.t.) To put each in the place of the other; to give and take mutually; to exchange; to reciprocate; as, to interchange places; they interchanged friendly offices and services.

Webster's Revised Unabridged Dictionary