bourdon¹ /boorˈdən/

1. A drone bass of a bagpipe
2. A bass stop in an organ or harmonium
3. The bass accompaniment to a melody (obsolete)

bourdon² /boorˈdən/ (obsolete)

1. A pilgrim's staff
2. A club

• regret
• regretful
• regretfully
• regrets
• regrettable
• regrettably
• regretted
• regretting
• regrind
• regrinding
• regrinds
• reground
• regroup
• regrouped
• regrouping
• regroups
• regrowth
• regrowths
• regs
• regt
• reguerdon
• reguerdoned
• reguerdoning
• reguerdons
• regula