ace

A major strategic headquarters of NATO; safeguards an area extending from Norway to Turkey.

Proteolytic enzyme that converts angiotensin I into angiotensin II.

Someone who is dazzlingly skilled in any field.

The smallest whole number or a numeral representing this number.

A serve that the receiver is unable to reach.

One of four playing cards in a deck having a single pip on its face.

Score an ace against.

“He aced his opponents”

Serve an ace against (someone).

Succeed at easily.

Play (a hole) in one stroke.

Of the highest quality.

“an ace reporter”