1. In an essential manner
   - necessarily

See also: needful

• R. J. Mitchell
• R.C.
• Ra
• RAAF
• Rabat
• rabato
• rabbet
• rabbet joint
• rabbet plane
• rabbi
• Rabbi Moses Ben Maimon
• rabbinate
• rabbinic
• rabbinical
• rabbit
• rabbit bandicoot
• rabbit brush
• rabbit burrow
• rabbit bush
• rabbit ears
• rabbit fever
• rabbit food
• rabbit hole
• rabbit hutch
• rabbit on