1. Without revealing one's identity
   - incognito

1. With your identity concealed
   - incognito

See also: concealed

• niter
• nitid
• nitpick
• nitpicker
• nitramine
• nitrate
• nitrate bacterium
• nitrazepam
• nitre
• nitric
• nitric acid
• nitric bacteria
• nitric bacterium
• nitric oxide
• nitride
• nitrification
• nitrify
• nitril
• nitrile
• nitrite
• nitrite bacterium
• nitro group
• nitro-
• Nitrobacter
• nitrobacteria