one of four playing cards in a deck having a single pip on its face;
a major strategic headquarters of NATO; safeguards an are extending from Norway to Turkey;
someone who is dazzlingly skilled in any field;
the smallest whole number or a numeral representing this number; "he has the one but will need a two and three to go with it"; "they had lunch at one";
serve an ace against (someone);
play (a hole) in one stroke;
score an ace against; "He aced his opponents";
succeed at easily; "She sailed through her exams"; "You will pass with flying colors"; "She nailed her astrophysics course";
of the highest quality; "an ace reporter"; "a crack shot"; "a first-rate golfer"; "a super party"; "played top-notch tennis"; "an athlete in tiptop condition"; "she is absolutely tops";
