A standard paper size, defined by ISO 216 with dimensions: 707 x 1000 mm
Origin
From ISO 216, the international standard on paper sizes specifies the trimmed sizes of writing paper and certain classes of printed matter. B1 is the second paper size code in the B series after B0.
Modern English dictionary
Explore and search massive catalog of over 900,000 word meanings.
Word of the Day
Get a curated memorable word every day.
Challenge yourself
Level up your vocabulary by setting personal goals.