| Skimpy bikini bottom |
| Large, flat-bottomed boat |
| Abbr. at the bottom of a business letter |
| Flat-bottomed rowboat |
| Flat-bottomed rowboats |
| Acknowledges responsibility for |
| Flat-bottom boats |
| Acknowledges performers |
| Absolute bottom |
| Acknowledges |
| Brit's bottom |
| Acknowledges nonverbally |
| Acknowledges silently |
| Acknowledges openly |
| Acknowledges applause |
| Adorable, bottomwise? |
| Bottom-line items |
| Acknowledges, with "to |
| Abbr. at a page bottom |
| Acknowledges calm |
| Bottom |
| Acknowledges in passing |
| Lake bottom |
| Abbr. at the bottom of a page of text |
| Acknowledges a great performance |
| Acknowledges tacitly |
| Abbr. at the bottom of a page |
| Adds to the bottom line |
| Acknowledges wordlessly, in a way |
| Flat-bottomed cargo hauler |