ah ha .. Im assuming your using Purse to mean a bag used by women to store personal items (USA) and not UK English "Purse" to mean a small bag (the size of your hand) to store money/credit cards... She snapped her purse closed. She slammed her briefcase down on the desk with a thud/loud bang.

All right, Annabelle. Please give me a reason why you choose the word "snap" for the first sentence, comparing to the word "smack". And why do you think "thud" is a better word choice for the second sentence? Your reason, my appreciation.

We don't say 'Reason, thanks' We say, Cheers, thanks Or Regards, thanks. or just thanks

'She closed her purse with a snap' 'She slammed her briefcase down on the desk with a thud.'