The term 'ACES, E.G.' is an abbreviation for 'aces, for example'. Aces are the highest ranking CARDS in a deck of playing CARDS, and they can be used to refer to any person or thing that is considered to be the best or most successful in its field. The crossword solutions for this term are 'Airmen' (6 letters), 'Serves' (6 letters), and 'CARDS' (5 letters). Airmen are members of the air force, and they serve their country by protecting it from threats in the air. Serving is an action that involves providing something to someone else, such as food or drinks. CARDS are pieces of paper or plastic that are used for various purposes, such as playing games or making payments.