Contiguity a. I-CONTIG ("No Skipping"): The portion of S1 standing in correspondence forms a contiguous string. Domain is a single contiguous string in S1. b. O-CONTIG ("No Intrusion"): The portion of S2 standing in correspondence forms a contiguous string. Range (ℜ) is a single contiguous string in S2.
- McCarthy & Prince (2004), Pag. 435

In the domain of base-reduplicant identity, the copy is usually a "contiguous" substring of the base. For instance, in Balangao prefixing reduplication [Shetler, Joan, 1976, “Notes on Balangao Grammar”, Huntington Beach, CA, Summer Institute of Linguistics; McCarthy, John J. and Prince, Alan. S., 1994a, “The emergence of the unmarked: Optimality in Prosodic Morphology, in Gonzales, M., ed., “Proceeding of the North East Linguistic Society” 24, Amherst, MA, pp. 333-379], contiguity protects reduplicant-medial coda consonants, though no reduplicant-final ones [...]. Violation of contiguity property is met with conspicuously in Sanskrit reduplication: "du-druv".
- McCarthy & Prince (2004), Pag. 372