(informal) To become big. / (slang, transitive) To proclaim or exaggerate the importance of; to promote.

(slang, also big ups) Significant respect or acclaim.

The hour bell in the Elizabeth Tower (formerly known as the Clock Tower), adjacent to the Houses of Parliament in Westminster, London, United Kingdom. / (by metonymy) The clock tower itself.

plural of big up

(finance) In a money market, the part of a monetary value before the decimal point.

(US, idiomatic, informal, chiefly Southern US) Emphatically or impressively big; really big.

(idiomatic, chiefly Southern US) Alternative spelling of big old

(slang, euphemistic) cancer.

A rollercoaster.

(informal) famous or celebrated; well-known.