rigol or rigoll /rigˈəl/

1. A gutter or water channel
2. A groove, esp an encircling groove
3. A circlet (Shakespeare)

• RSL
• RSM
• RSNC
• RSNO
• RSNZ
• RSPB
• RSPCA
• RSS
• RSSA
• RSSPCC
• RSTM&H
• RSV
• RSVP
• rt
• RT
• RTA
• rtd
• RTE
• RTF
• Rt Hon.
• RTPI
• Rt Rev.
• RU
• Ru
• ruana