What does correspond mean?
To correspond is to be in agreement, harmony, or equivalence with something else — as when evidence matches testimony, or when a map's markings correspond to actual locations on the ground. The word also carries a second, historically prominent sense: to correspond can mean to communicate by exchanging letters, a usage so established it gave rise to the noun 'correspondence' and the term 'correspondent'. In everyday use, 'correspond' most often appears in formal, analytical contexts — scientific papers comparing data sets, financial reports aligning figures, legal documents verifying facts. It typically takes the prepositions 'to' or 'with', and choosing between them subtly shifts emphasis: 'correspond to' suggests a precise mapping or equivalence, while 'correspond with' suggests broader agreement or mutual communication. The verb carries no strong emotional charge; it signals accuracy, consistency, and alignment rather than warmth or conflict.
verbTo correspond is to be in agreement, similarity, or equivalence with something else, or to communicate by exchanging letters or messages.
- (of two things) to match, agree, or be equivalent: 'his fingerprints corresponded to those found at the scene'
- (correspond with someone) to communicate by exchanging letters or emails
- (correspond to something) to have a close similarity or be analogous to something
"The witness's account corresponds closely with the security footage."
"The figures in the report correspond exactly to the data collected last year."
"The two scientists corresponded regularly for over a decade, sharing ideas across continents by letter."
When you write a letter, you're doing two things at once: the word 'correspond' covers both matching up and keeping in touch — one Latin root, 'respondere', meaning 'to answer'.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of correspond
The English verb 'correspond' derives from Medieval Latin 'correspondere', formed from the prefix 'cor-' (a variant of 'com-', meaning 'together') plus 'respondere', meaning 'to answer' or 'to respond'. It entered English in the mid-16th century, initially carrying both its senses of mutual agreement and of reciprocal communication by letter. Its Latin root 'respondere' also underlies related English words including 'response', 'responsible', and, more distantly, 'sponsor' and 'spontaneous', all tracing back to the same notion of answering or undertaking something.
Related word forms
How correspond is actually used
Formal to neutral register; common in academic, legal, and journalistic writing. Note that 'correspond to' usually indicates a structural or numerical equivalence ('the results correspond to a rise of 3%'), while 'correspond with' can indicate either matching ('his account corresponds with hers') or exchanging correspondence. In American English, 'correspond with' for matching things is somewhat more common than 'correspond to'; British usage favours 'correspond to' for equivalence.
Easily confused with correspond
'Coincide' means occurring at exactly the same time or place, while 'correspond' means matching or being in agreement, often without exact overlap.
'Respond' means to reply or react to something, while 'correspond' primarily means to match or agree with something else (or to exchange letters).