To sail around Cape Horn.

(slang) Mad. / (slang) Eccentric.

(idiomatic) An outburst of clapping among a group or audience.

Alternative form of all-rounder

Indirect, circuitous, or circumlocutionary. / Encircling; enveloping; comprehensive.

(chiefly UK, New Zealand, Ireland, Canada, Australia and sometimes US) A road junction at which traffic streams circularly around a central island.

To play on a roundabout (carousel) / To travel round roundabouts / To talk in a roundabout, indirect manner

A metal file with a circular or rounded shape, used for shaping round surfaces. / (humorous) The trash; the wastebasket.

A number whose decimal representation ends in one or more zeroes. / A rough approximation, especially one whose decimal representation ends in one or more zeroes.

(transitive, arithmetic) To round (a number) to the greatest integer that is not greater than it, or to some other lower value, especially a whole number of hundreds, thousands, etc.