From Longman Dictionary of Contemporary Englishboard something ↔ up phrasal verbCOVERto cover a window or door, or all the windows and doors of a building, with wooden boards The shop was boarded up. → board→ See Verb table
Examples from the Corpus
board up• The Highlands Congested Districts Board was set up for this purpose in 1897, but it was able to achieve very little.• Outside his office Kurds wandered past boarded - up houses and waited for the post.• The Banking Code Standards Board has drawn up new guidance on such matters as exit penalties and reasonable rates of interest.• Instead of answering she walked to the bulletin board and pinned up the clipping.• The full board will take up the matter Monday, and passage is expected.• Under its current system board design, up to four PowerPC chips could be used.• Catchment boards were set up, which in 1948 became river boards, and in 1964 river authorities.• The board must come up with a plan to put the city back on its financial feet. 