ACE /ās/

1. Advisory Centre for Education
2. Allied Command Europe
3. Angiotensin converting enzyme
4. Architects' Council of Europe
5. Arts Council England
6. Association for the Conservation of Energy

ACE inhibitor noun

A substance that interferes with the production of angiotensin converting enzyme, used to treat high blood pressure, kidney disease, etc

ace /ās/

1. A unit
2. The one in dice, cards, dominoes, etc
3. A single point
4. A winning serve, esp one which the opponent fails to touch (tennis)
5. A hole in one (see under hole¹; golf)
6. A jot
7. A person of the highest character (Burns)
8. A person of distinguished achievement, an expert (orig an airman) (informal)

1. Of highest quality
2. Outstanding

1. To serve an ace against (an opponent) (tennis)
2. To play (a hole) in one stroke (golf)
3. To pass (an examination) with the highest available mark (US informal)

an ace up one's sleeve or an ace in the hole

A decisive but hidden advantage

hold all the aces

To have all the advantages, be in a winning position

play one's ace

To use one's best weapon, resource, etc

within an ace of

Within a hair's-breadth of

• tweedledee
• Tweedledee and Tweedledum
• tweedledeed
• tweedledeeing
• tweedledees
• three-pound
• three-pounder
• three-pounders
• three-pricker
• three-prickers
• threeps
• three-quarter
• three-quarter back
• three-quarter backs
• three-quarter face
• three-quarter-length
• three quarters
• three-quarters
• threequel
• threequels
• three-ring circus
• three-ring circuses
• threes
• threescore
• threescore and ten