A signboard is a piece of wood which has been painted with pictures or words and which gives some information about a particular place, product, or event.
The signboard outside the factory read 'baby milk plant'.
signboard in British English
(ˈsaɪnˌbɔːd)
noun
a board carrying a sign or notice, esp one used to advertise a product, event, etc
signboard in American English
(ˈsaɪnˌbɔrd)
noun
a board bearing a sign or notice, esp. one advertising a business, product, etc.
Examples of 'signboard' in a sentence
signboard
I'd seen the Jag sitting next to Nell's GT i in the garage the night I'd spotted the T. R. Harris signboard.
Val McDermid KICK BACK (2002)
His signboard was elaborately carved and framed, as if to be sure his skill were properly displayed.
Robin Hobb THE GOLDEN FOOL: BOOK TWO OF THE TAWNY MAN (2002)