| as well |
| as yet |
| as you go |
| as you know |
| at a canter |
| at a distance |
| at a draught |
| at a glance |
| at all |
| at all events |
| at all hands |
| at all hours |
| at a loss |
| at a loss for words |
| at a low ebb |
| at a moment's notice |
| at any given moment |
| at a pinch |
| at arm's length |
| at a stand |
| at bay |
| at bottom |
| at cross-purposes |
| at daggers drawn |
| at death's door |
| at each other's throats |
| at first |
| at first blush |
| at full tilt |
| at home |
| at large |
| at last |
| at latter Lammas |
| at long last |
| at loose ends |
| at odds |
| atomic cocktail |
| at one's feet |
| at one's fingertips |
| at pains |
| at peace |
| at peace with |
| at places |
| at rack and manger |
| at rest |
| at sea |
| at sixes and sevens |
| at someone's disposal |
| at someone's door |
| at someone's heels |
| at spearpoint |
| at stake |
| attaboy |
| attagal |
| atta girl |
| attagirl |
| attakid |
| attention whore |
| at that |
| at the best of times |
| at the coal face |
| at the disposal of |
| at the door of |
| at the drop of a hat |
| at the elbow |
| at the end of one's tether |
| at the end of the day |
| at the expense of |
| at the feet of |
| at the helm |
| at the high port |
| at the last minute |
| at the mercy of |
| at the ready |
| at the receiving end |
| at the top of one's lungs |
| at the top of one's voice |
| at the very least |
| at the very most |
| at the wheel |
| at this point in time |
| Attic salt |
| at times |
| at variance |
| at will |
| Augean stables |
| auld lang syne |
| autem cackler |
| autem diver |
| autem mort |
| autumn romance |
| avant la lettre |
| average bear |
| average joe |
| average up |
| away game |
| away with the fairies |
| a week from next Tuesday |
| a week is a long time in politics |
| a wild goose never laid a tame egg |