Impression can mean:

• In western philosophy, David Hume used the word "impression" as he defines it in "An Enquiry Concerning Human Understanding".
• In eastern philosophy, Meher Baba used the word "impression" as the best English approximation of the vedantic sanskara in "God Speaks."
• Impression (Dental) is a dental procedure.
• The Impressions (American band), a 1960s/1970s American soul musical act from Chicago, Illinois led by Curtis Mayfield and Jerry Butler.
• Impressions Games (known as "Impressions" before) was a video game developer.

Impression