What does "cardboard" mean?
Cardboard: A stiff compact pasteboard of various qualities, for making cards, etc., often having a polished surface.
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00