clapboard, weatherboard, weatherboarding
(noun) a long thin board with one edge thicker than the other; used as siding by lapping one board over the board below
clapboard
(verb) cover with clapboards
Source: WordNet® 3.1
clapboard (countable and uncountable, plural clapboards)
A narrow board, usually thicker at one edge than the other, used as siding for houses and similar structures of frame construction.
(uncountable) Such boards, arranged horizontally and overlapping with thick edge down, collectively, as siding.
(archaic, UK) An oak board of a size used for barrel staves.
• weatherboard
clapboard (third-person singular simple present clapboards, present participle clapboarding, simple past and past participle clapboarded)
To cover with clapboards.
clapboard (plural clapboards)
(film) A clapper board; a device used in film production, having hinged boards that are brought together with a clap, used to synchronize picture and sound at the start of each take of a motion picture or other video production.
• (film): clapper board, clapstick, slate, slate board, sync slate, sticks, board, marker
Source: Wiktionary
Clap"board, n.
1. A narrow board, thicker at one edge than at the other; -- used for weatherboarding the outside of houses. [U. S.]
2. A stave for a cask. [Eng.] Halliwell.
Clap"board, v. t.
Definition: To cover with clapboards; as, to clapboard the sides of a house. [U. S.] Bartlett.
Source: Webster’s Unabridged Dictionary 1913 Edition
12 June 2025
(noun) a decrease in the density of something; “a sound wave causes periodic rarefactions in its medium”
According to Guinness World Records, on 25 September 2016, the Birla Institute of Management Technology (India) in Uttar Pradesh, India, constructed the largest coffee cups pyramid consisting of 23,821 cups. They used paper takeaway coffee cups to build the pyramid.
