Thump/θʌmp/ Definition 1 of 4Pro Tip 1/3Physical Impact Use 'thump' to describe strong, heavy sounds from objects hitting surfaces. We heard a thump upstairs as the book fell off the shelf. Pro Tip 2/3Implied Weight 'Thump' suggests the object making the noise is large or heavy. The thump of his luggage announced his return. Pro Tip 3/3Dramatic Tension The word 'thump' can create a sense of suspense or alarm in stories. A thump outside made her freeze in fear.