1. to surprise or shock someone very much; to amaze greatly
Usage: third person singular present tense of ‘astound’

Examples

• Her talent for mathematics astounds her teachers.
• The magician’s trick astounds the audience every night.
• It astounds me how quickly children learn new languages.
• The speed of technological progress astounds older generations.
• His generosity astounds everyone who knows him.
• The complexity of the human brain astounds scientists.
• What astounds me most is her ability to remain calm under pressure.