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Word

Definitions:

  A group of 32 bits that is treated either as a single entity or as an array of 4 bytes.
Sources:
FIPS 197 [NIST FIPS 197-upd1]

  A predefined substring consisting of a fixed pattern/template (e.g., 010,  0110).
Sources:
NIST SP 800-22 Rev. 1a