any ball that cannot be found within 5 minutes of beginning a search. Example: "The rules of Golf stipulate that any player who declares his/her ball lost is assessed a 2 stroke penalty and t [..]

any ball that cannot be found within five minutes of beginning a search for it; see definition in the Rules of Golf for more detail (see also "provisional ball") Example: A lost ball [..]

If a ball couldn’t be found after 5 minutes it has to be declared lost. Take a penalty stroke and continue according to the rules.

any ball that cannot be found within five minutes of beginning a search for it

If a golf ball can't be located after a stroke during the play, it is defined as lost ball. Usually playing with two golf balls is not allowed, but according to the etiquette a lost ball can be replaced by a provisional golf ball, in order to save time and guarantee a fluent game.

A golf ball which has been hit by a golfer and as a result cannot be found. The golfer is penalised for losing their golf ball by incurring an automatic stroke and distance penalty shot.

a common occurrence of the game. Ruled lost if not found in 5 minutes or the player cannot state for certain that it belongs to him/her.

An opponent's missing ball after 90 seconds of searching, or one of your own after 20 minutes.

Any ball that cannot be found within five minutes of beginning a search for it.