I. fi ‧ ber ‧ board /ˈfaɪbəbɔːd $ -bərbɔːrd/ BrE AmE noun [uncountable]
the American spelling of ↑ fibreboard
II. fi ‧ bre ‧ board BrE AmE British English , fiberboard American English /ˈfaɪbəbɔːd $ -bərbɔːrd/ noun [uncountable]
board made from wood fibres pressed together