signboards is a form of:

Signboard



noun
1.
(a board bearing a sign or advertisement, esp. one advertising a business product, etc) យីហោ, ក្ដារប្រកាស, ក្ដារឃោនា
ENGLISH MEANING
noun
1.
A board, placed on or before a shop, office, etc., on which ssome notice is given, as the name of a firm, of a business, or the like.