Unreturned tennis serves - Crossword Clue

Below are possible answers for the crossword clue Unreturned tennis serves.

4 letter answer(s) to unreturned tennis serves

ACES

a major strategic headquarters of NATO; safeguards an area extending from Norway to Turkey
a serve that the receiver is unable to reach
one of four playing cards in a deck having a single pip on its face
play (a hole) in one stroke
proteolytic enzyme that converts angiotensin I into angiotensin II
score an ace against; "He aced his opponents"
serve an ace against (someone)
succeed at easily; "She sailed through her exams"; "You will pass with flying colors"; "She nailed her astrophysics course"
the smallest whole number or a numeral representing this number;

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