Word: millboard
Part of speech: Noun
Syllables: mill
board
Definition: A stiff paperboard or pasteboard used as book covers.
Morphemes:
Affix: mill
Language: en
PoS: Noun
Meaning: The raised or ridged edge or surface made in milling anything, such as a coin or screw.
Affix: board
Language: en
PoS: Noun
Meaning: Paper made thick and stiff like a board, for book covers, etc; pasteboard.