1. Definitely or positively ('sure' is sometimes used informally for 'surely')
   "she certainly is a hard worker"
   - surely, sure, for sure, for certain, sure enough, sure as shooting

See also: certain

• sleuthhound
• sleuthing
• slew
• slews
• Slezsko
• slice
• slice bar
• slice into
• slice through
• slice up
• sliced
• slicer
• slicing
• slick
• slick down
• slick magazine
• slick up
• slicked
• slicked up
• slicker
• slickly
• slickness
• slide
• slide action
• slide by