updraught(NAmer updraft) noun

• boating
• boatload
• boatman
• boat people
• boat race
• boatswain
• boatswain's chair
• boat train
• Bob
• bob
• bobbejaan
• bobber
• bobbin
• bobbinet
• bobbin lace
• bobble
• bobble hat
• bobby
• bobby calf
• bobby dazzler
• bobby pin
• bobby socks
• bobby-soxer
• bobcat
• bobolink