Style Guide: Z

zine

zip codes
U.S. zip+4 codes are listed online at www.usps.com/zip4/. To speed delivery of mail to U.S. addresses, use zip+4 codes.

zone of proximal development = ZPD (associated with L. Vygotsky. Note change in capitalization of this term.)

ZPD = zone of proximal development (associated with L. Vygotsky. Note change in capitalization of this term.)

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