The term "snuff" sometimes overlaps with "snus

https://best-snus-ckki185326767180127589.iamarrows.com/the-evolution-of-smokeless-tobacco-learning-how-to-use-modern-day-snus-velo

The term "snuff" sometimes overlaps with "snus," but they refer to different forms of smokeless tobacco: dip versus ground tobacco powder intended for nasal use versus oral use.