1. In a surreptitious manner
   - surreptitiously, clandestinely

See also: sneaky

• Sequoiadendron
• Sequoiadendron giganteum
• Sequoya
• Sequoyah
• serac
• seraglio
• serail
• serape
• seraph
• seraphic
• seraphical
• Serax
• Serb
• Serbia
• Serbia and Montenegro
• Serbian
• Serbo-Croat
• Serbo-Croatian
• Serdica
• sere
• serein
• serenade
• serendipitous
• serendipity
• serene