the broken or worn place in something built: the damage that repair work is meant to close
This word names a fault in something that was built: a crack in masonry, a sprung seam in a hull. It is never simply a description of ruin. Every time it appears it stands beside a verb meaning "to strengthen", so the fault is always being sized up by someone who means to close it.
Six of its eight appearances belong to one fixed expression, "the damage of the house", which is how the book of Kings talks about keeping the temple in Jerusalem in good order. The phrase hardens into something close to an accounting term: silver comes in, and carpenters, builders, masons and stonecutters are paid, and what they are paid for is the damage of the house (2 Kings 12:12; 2 Kings 22:5). The verb built from the same root (בָּדַק) shows up only once in the whole Bible, in a matching report of temple repairs.
The last two appearances move the picture from stone to timber. Ezekiel describes the city of Tyre as a splendid trading ship, and the skilled men of Gebal are aboard as the crew who keep her seams tight (Ezekiel 27:9). When she founders, they go down with the cargo and the sailors (Ezekiel 27:27). The word is doing the same job in both settings: it marks the place where a structure has opened and someone has to close it again.