I found it hard to 'suppress' a smile [=to keep myself from smiling] when he told me about what happened.
The judge may decide to 'suppress' the evidence. [=to not allow the evidence to be used at a trial]
She tried to 'suppress' a cough/laugh. [=she tried not to cough/laugh]
(..) Dr. Neuman, you say that everybody wears a mask? That's correct. We aII wear masks, metaphoricaIIy speaking. We suppress the id, our darkest desires... and adopt a more sociaIIy acceptabIe image. The book is ''The Masks We Wear'' by Dr. Arthur Neuman. Thank you for being here. What is it? (..)1994 The Mask