How to spell ROTUNDER correctly?

If you are referring to the misspelling "rotunder", there are a few correct suggestions that can help. The word you may be looking for is "rotunda", which refers to a building or room with a circular shape. Other alternatives could be "rounded", "plump" or "portly", depending on the context.

• rotund The rotund man waddled down the street, his bulging belly bouncing up and down with every step.
• rotunda The new museum features a grand rotunda with marble columns and a domed ceiling.
• rounded
• rounder My face looks significantly rounder since I gained weight.

Excatally

• exact
• exacted
• exactingly
• exactly
• exacts
• executable
• exotically
• extol
• inexactly
• oxtail