Learn how to say Sunspot correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word sunspot:
any of the dark cool patches, with a diameter of up to several thousand kilometres, that appear on the surface of the sun and last about a week. They occur in approximately 11-year cycles and possess a strong magnetic field
(informal) a sunny holiday resort
(Australian) a small cancerous spot produced by overexposure to the sun