Alternative spelling of old sweat

(Britain, military slang, chiefly WWI) An experienced soldier. / (Britain, military slang) A veteran soldier or war veteran. / (Britain, slang, figuratively) Someone experienced in his or her field.

Beyond one's knowledge or understanding.

(transitive) To produce (a message, rhythm, or other thing) by tapping.

plural of old-sweat

To worry about a future situation despite being as yet unable to act on it.

(tennis) With each player or pairing having won the same number of games as they have served.

Alternative spelling of once-over

(transitive, tennis) To win a set, or by extension a match, by holding serve (winning a game as the server). / (transitive) To serve the whole of some period. / (transitive) To deal out or distribute.

(idiomatic, obsolete) For one's part; as far as one is concerned.