Another appendix elucidates the S.E.C.R. headcode system.
Source: wiktionary
Headcode
Synonyms for "headcode"
Ranked by relevance and common usage.
Sample sentences
2 total sentences available.
Gaining a new headcode, it is then rebranded as the 2103 Carmarthen-Fishguard Harbour - a place I'd never visited by rail.
Source: wiktionary
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.