Some words with 'round' in them are:
In the sentence "circles are round," the word "round" is an adjective describing the shape of the circles.
"The ball is round"
swiveled round
round or usually round
Round is a root word. Around, roundabout, roundtable, rounding, surround
I rolled the ball in a perfect round around the table.
Something which goes round and round.
The word world does not imply that that the world is round. Google Earth shows that the world is round lol but seriously everyone knows the world is round.
Round and round, you can make these words:dodondourduononodnoronorourrodrunundourn
In the sentence given, "round" is a noun.
Round, back in 1492, Columbus proved it without knowing he did.
It is a noun, it means one of a series.