correspond

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To be in agreement, harmony, or conformity.
2. v. To be similar or equivalent in character, quantity, origin, structure, or function: English navel corresponds to Greek omphalos. See Synonyms at agree.
3. v. To communicate by letter, usually over a period of time.

Century Dictionary and Cyclopedia

1. To be in the same or an analogous relation to one set of objects that something else is to another set of objects; to be, as an individual of a collection, related to an individual of another collection by some mode of relation in which the members of the first collection generally are related to those of the second: followed by to. Thus, the United States House of Representatives corresponds to the New York Assembly—that is, it has an analogous function in government.
2. More generally In mathematics, to be, as an individual of a set, related to an individual of another (or the same) set in a way in which every individual of the first set is related to a definite number of individuals of the second set, and in which a definite number of individuals of the first set is related to each individual of the second set.
3. To be in conformity or agreement; have an answering form or nature; be reciprocally adapted or complementary; agree; match; fit: used absolutely or followed by with or to: as, his words and actions do not correspond; the promise and the performance do not correspond with each other; his expenditures do not correspond to his income.
4. To communicate by means of letters sent and received; hold intercourse with a person at a distance by sending and receiving letters: absolutely or followed by with.
5. To hold communion: followed by with.
6. Synonyms (Of correspond to.) To suit, answer to, accord with, harmonize with, tally with, comport with.

Wiktionary

1. v. intransitive to be equivalent or similar in character, quantity, quality, origin, structure, function etc.
2. v. intransitive to exchange messages, especially by postal letter, over a period of time.

GNU Webster's 1913

1. v. To be like something else in the dimensions and arrangement of its parts; -- followed by with or to.
2. v. To be adapted; to be congruous; to suit; to agree; to fit; to answer; -- followed by to.
3. v. To have intercourse or communion; especially, to hold intercourse or to communicate by sending and receiving letters; -- followed by with.

WordNet 3.0

1. v. take the place of or be parallel or equivalent to
2. v. be compatible, similar or consistent; coincide in their characteristics
3. v. be equivalent or parallel, in mathematics
4. v. exchange messages